A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700
We report the discovery of TOI-700 e, a 0.95 R ⊕ planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission. The host star, TOI-700 (TIC 150428135), is a nearby (3...
Gespeichert in:
| Veröffentlicht in: | Astrophysical journal. Letters 2023-02, Vol.944 (2), p.L35 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 2 |
| container_start_page | L35 |
| container_title | Astrophysical journal. Letters |
| container_volume | 944 |
| creator | Gilbert, Emily A. Vanderburg, Andrew Rodriguez, Joseph E. Hord, Benjamin J. Clement, Matthew S. Barclay, Thomas Quintana, Elisa V. Schlieder, Joshua E. Kane, Stephen R. Jenkins, Jon M. Twicken, Joseph D. Kunimoto, Michelle Vanderspek, Roland Arney, Giada N. Charbonneau, David Günther, Maximilian N. Huang, Chelsea X. Isopi, Giovanni Kostov, Veselin B. Kristiansen, Martti H. Latham, David W. Mallia, Franco Mamajek, Eric E. Mireles, Ismael Quinn, Samuel N. Ricker, George R. Schulte, Jack Seager, S. Suissa, Gabrielle Winn, Joshua N. Youngblood, Allison Zapparata, Aldo |
| description | We report the discovery of TOI-700 e, a 0.95
R
⊕
planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission. The host star, TOI-700 (TIC 150428135), is a nearby (31.1 pc), inactive, M2.5 dwarf (
V
mag
= 13.15). TOI-700 is already known to host three planets, including the small, HZ planet, TOI-700 d. The new planet has an orbital period of 27.8 days, and based on its radius (0.95
R
⊕
), it is likely rocky. TOI-700 was observed for 21 sectors over Years 1 and 3 of the TESS mission, including 10 sectors at 20 s cadence in Year 3. Using this full set of TESS data and additional follow-up observations, we identify, validate, and characterize TOI-700 e. This discovery adds another world to the short list of small, HZ planets transiting nearby and bright host stars. Such systems, where the stars are bright enough that follow-up observations are possible to constrain planet masses and atmospheres using current and future facilities, are incredibly valuable. The presence of multiple small, HZ planets makes this system even more enticing for follow-up observations. |
| doi_str_mv | 10.3847/2041-8213/acb599 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_iop_j</sourceid><recordid>TN_cdi_proquest_journals_2777448659</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_af3d036a9f1a47faabb5f5d5ac0811ad</doaj_id><sourcerecordid>2777448659</sourcerecordid><originalsourceid>FETCH-LOGICAL-c447t-7379e624db89c80d7ea4b75913b9fc22278c514f27a9cefce19d74472b2e87b63</originalsourceid><addsrcrecordid>eNp9UElL9EAQDaLgevfYIHgy2mu6-yiuAyMK6sVLU71phpjO14mI_nozRua7iKcqHm-pekWxT_AxU1yeUMxJqShhJ-Cs0Hqt2FpB66sdi81iu-8XGFNcEbVVzE7RfXCp9egC8vBS9vVn8OiugTYMqG7R8BLQNdh6ANsE9JTagFL8Rm_Q-TvkeIQebmelxHi32IjQ9GHvZ-4Uj5cXD2fX5fz2anZ2Oi8d53IoJZM6VJR7q7RT2MsA3EqhCbM6OkqpVE4QHqkE7UJ0gWgvRyW1NChpK7ZTzCZfn2Bhuly_Qv4wCWrzDaT8bMZPatcEA5F5zCrQkQCXEcBaEYUX4LAiBPzodTB5dTn9ewv9YBbpLbfj-YZKOcaqSuiRhSeWy6nvc4irVILNsnyzbNcsmzZT-aPkaJLUqfvv-Qf98Bc6dIvGaM4NNXMmTOcj-wJkQ49i</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2777448659</pqid></control><display><type>article</type><title>A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700</title><source>IOP Publishing Free Content</source><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>IOPscience extra</source><source>Alma/SFX Local Collection</source><creator>Gilbert, Emily A. ; Vanderburg, Andrew ; Rodriguez, Joseph E. ; Hord, Benjamin J. ; Clement, Matthew S. ; Barclay, Thomas ; Quintana, Elisa V. ; Schlieder, Joshua E. ; Kane, Stephen R. ; Jenkins, Jon M. ; Twicken, Joseph D. ; Kunimoto, Michelle ; Vanderspek, Roland ; Arney, Giada N. ; Charbonneau, David ; Günther, Maximilian N. ; Huang, Chelsea X. ; Isopi, Giovanni ; Kostov, Veselin B. ; Kristiansen, Martti H. ; Latham, David W. ; Mallia, Franco ; Mamajek, Eric E. ; Mireles, Ismael ; Quinn, Samuel N. ; Ricker, George R. ; Schulte, Jack ; Seager, S. ; Suissa, Gabrielle ; Winn, Joshua N. ; Youngblood, Allison ; Zapparata, Aldo</creator><creatorcontrib>Gilbert, Emily A. ; Vanderburg, Andrew ; Rodriguez, Joseph E. ; Hord, Benjamin J. ; Clement, Matthew S. ; Barclay, Thomas ; Quintana, Elisa V. ; Schlieder, Joshua E. ; Kane, Stephen R. ; Jenkins, Jon M. ; Twicken, Joseph D. ; Kunimoto, Michelle ; Vanderspek, Roland ; Arney, Giada N. ; Charbonneau, David ; Günther, Maximilian N. ; Huang, Chelsea X. ; Isopi, Giovanni ; Kostov, Veselin B. ; Kristiansen, Martti H. ; Latham, David W. ; Mallia, Franco ; Mamajek, Eric E. ; Mireles, Ismael ; Quinn, Samuel N. ; Ricker, George R. ; Schulte, Jack ; Seager, S. ; Suissa, Gabrielle ; Winn, Joshua N. ; Youngblood, Allison ; Zapparata, Aldo</creatorcontrib><description>We report the discovery of TOI-700 e, a 0.95
R
⊕
planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission. The host star, TOI-700 (TIC 150428135), is a nearby (31.1 pc), inactive, M2.5 dwarf (
V
mag
= 13.15). TOI-700 is already known to host three planets, including the small, HZ planet, TOI-700 d. The new planet has an orbital period of 27.8 days, and based on its radius (0.95
R
⊕
), it is likely rocky. TOI-700 was observed for 21 sectors over Years 1 and 3 of the TESS mission, including 10 sectors at 20 s cadence in Year 3. Using this full set of TESS data and additional follow-up observations, we identify, validate, and characterize TOI-700 e. This discovery adds another world to the short list of small, HZ planets transiting nearby and bright host stars. Such systems, where the stars are bright enough that follow-up observations are possible to constrain planet masses and atmospheres using current and future facilities, are incredibly valuable. The presence of multiple small, HZ planets makes this system even more enticing for follow-up observations.</description><identifier>ISSN: 2041-8205</identifier><identifier>EISSN: 2041-8213</identifier><identifier>DOI: 10.3847/2041-8213/acb599</identifier><language>eng</language><publisher>Austin: The American Astronomical Society</publisher><subject>Astronomy data analysis ; Circumstellar habitable zone ; Exoplanet systems ; Extrasolar planets ; Low-mass stars ; M-dwarf stars ; Orbits ; Planet detection ; Satellites ; Stars ; Transit ; Transit photometry</subject><ispartof>Astrophysical journal. Letters, 2023-02, Vol.944 (2), p.L35</ispartof><rights>2023. The Author(s). Published by the American Astronomical Society.</rights><rights>2023. The Author(s). Published by the American Astronomical Society. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c447t-7379e624db89c80d7ea4b75913b9fc22278c514f27a9cefce19d74472b2e87b63</citedby><cites>FETCH-LOGICAL-c447t-7379e624db89c80d7ea4b75913b9fc22278c514f27a9cefce19d74472b2e87b63</cites><orcidid>0000-0002-3164-9086 ; 0000-0003-4471-1042 ; 0000-0003-0918-7484 ; 0000-0001-5347-7062 ; 0000-0002-6778-7552 ; 0000-0001-5724-1807 ; 0000-0002-4510-2268 ; 0000-0002-2607-138X ; 0000-0003-2008-1488 ; 0000-0001-7246-5438 ; 0000-0001-7139-2724 ; 0000-0002-9003-484X ; 0000-0001-6763-6562 ; 0000-0002-8458-0588 ; 0000-0002-6892-6948 ; 0000-0002-7382-0160 ; 0000-0002-4265-047X ; 0000-0001-9269-8060 ; 0000-0002-1176-3391 ; 0000-0001-9911-7388 ; 0000-0001-9786-1031 ; 0000-0001-6285-267X ; 0000-0003-1309-2904 ; 0000-0002-9428-1573 ; 0000-0003-2058-6662 ; 0000-0002-0388-8004 ; 0000-0001-8933-6878 ; 0000-0003-3904-6754 ; 0000-0002-4715-9460 ; 0000-0001-8812-0565 ; 0000-0002-7084-0529 ; 0000-0002-8964-8377</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.3847/2041-8213/acb599/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,776,780,860,2096,27901,27902,38845,38867,53815,53842</link.rule.ids></links><search><creatorcontrib>Gilbert, Emily A.</creatorcontrib><creatorcontrib>Vanderburg, Andrew</creatorcontrib><creatorcontrib>Rodriguez, Joseph E.</creatorcontrib><creatorcontrib>Hord, Benjamin J.</creatorcontrib><creatorcontrib>Clement, Matthew S.</creatorcontrib><creatorcontrib>Barclay, Thomas</creatorcontrib><creatorcontrib>Quintana, Elisa V.</creatorcontrib><creatorcontrib>Schlieder, Joshua E.</creatorcontrib><creatorcontrib>Kane, Stephen R.</creatorcontrib><creatorcontrib>Jenkins, Jon M.</creatorcontrib><creatorcontrib>Twicken, Joseph D.</creatorcontrib><creatorcontrib>Kunimoto, Michelle</creatorcontrib><creatorcontrib>Vanderspek, Roland</creatorcontrib><creatorcontrib>Arney, Giada N.</creatorcontrib><creatorcontrib>Charbonneau, David</creatorcontrib><creatorcontrib>Günther, Maximilian N.</creatorcontrib><creatorcontrib>Huang, Chelsea X.</creatorcontrib><creatorcontrib>Isopi, Giovanni</creatorcontrib><creatorcontrib>Kostov, Veselin B.</creatorcontrib><creatorcontrib>Kristiansen, Martti H.</creatorcontrib><creatorcontrib>Latham, David W.</creatorcontrib><creatorcontrib>Mallia, Franco</creatorcontrib><creatorcontrib>Mamajek, Eric E.</creatorcontrib><creatorcontrib>Mireles, Ismael</creatorcontrib><creatorcontrib>Quinn, Samuel N.</creatorcontrib><creatorcontrib>Ricker, George R.</creatorcontrib><creatorcontrib>Schulte, Jack</creatorcontrib><creatorcontrib>Seager, S.</creatorcontrib><creatorcontrib>Suissa, Gabrielle</creatorcontrib><creatorcontrib>Winn, Joshua N.</creatorcontrib><creatorcontrib>Youngblood, Allison</creatorcontrib><creatorcontrib>Zapparata, Aldo</creatorcontrib><title>A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700</title><title>Astrophysical journal. Letters</title><addtitle>APJL</addtitle><addtitle>Astrophys. J. Lett</addtitle><description>We report the discovery of TOI-700 e, a 0.95
R
⊕
planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission. The host star, TOI-700 (TIC 150428135), is a nearby (31.1 pc), inactive, M2.5 dwarf (
V
mag
= 13.15). TOI-700 is already known to host three planets, including the small, HZ planet, TOI-700 d. The new planet has an orbital period of 27.8 days, and based on its radius (0.95
R
⊕
), it is likely rocky. TOI-700 was observed for 21 sectors over Years 1 and 3 of the TESS mission, including 10 sectors at 20 s cadence in Year 3. Using this full set of TESS data and additional follow-up observations, we identify, validate, and characterize TOI-700 e. This discovery adds another world to the short list of small, HZ planets transiting nearby and bright host stars. Such systems, where the stars are bright enough that follow-up observations are possible to constrain planet masses and atmospheres using current and future facilities, are incredibly valuable. The presence of multiple small, HZ planets makes this system even more enticing for follow-up observations.</description><subject>Astronomy data analysis</subject><subject>Circumstellar habitable zone</subject><subject>Exoplanet systems</subject><subject>Extrasolar planets</subject><subject>Low-mass stars</subject><subject>M-dwarf stars</subject><subject>Orbits</subject><subject>Planet detection</subject><subject>Satellites</subject><subject>Stars</subject><subject>Transit</subject><subject>Transit photometry</subject><issn>2041-8205</issn><issn>2041-8213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>DOA</sourceid><recordid>eNp9UElL9EAQDaLgevfYIHgy2mu6-yiuAyMK6sVLU71phpjO14mI_nozRua7iKcqHm-pekWxT_AxU1yeUMxJqShhJ-Cs0Hqt2FpB66sdi81iu-8XGFNcEbVVzE7RfXCp9egC8vBS9vVn8OiugTYMqG7R8BLQNdh6ANsE9JTagFL8Rm_Q-TvkeIQebmelxHi32IjQ9GHvZ-4Uj5cXD2fX5fz2anZ2Oi8d53IoJZM6VJR7q7RT2MsA3EqhCbM6OkqpVE4QHqkE7UJ0gWgvRyW1NChpK7ZTzCZfn2Bhuly_Qv4wCWrzDaT8bMZPatcEA5F5zCrQkQCXEcBaEYUX4LAiBPzodTB5dTn9ewv9YBbpLbfj-YZKOcaqSuiRhSeWy6nvc4irVILNsnyzbNcsmzZT-aPkaJLUqfvv-Qf98Bc6dIvGaM4NNXMmTOcj-wJkQ49i</recordid><startdate>20230201</startdate><enddate>20230201</enddate><creator>Gilbert, Emily A.</creator><creator>Vanderburg, Andrew</creator><creator>Rodriguez, Joseph E.</creator><creator>Hord, Benjamin J.</creator><creator>Clement, Matthew S.</creator><creator>Barclay, Thomas</creator><creator>Quintana, Elisa V.</creator><creator>Schlieder, Joshua E.</creator><creator>Kane, Stephen R.</creator><creator>Jenkins, Jon M.</creator><creator>Twicken, Joseph D.</creator><creator>Kunimoto, Michelle</creator><creator>Vanderspek, Roland</creator><creator>Arney, Giada N.</creator><creator>Charbonneau, David</creator><creator>Günther, Maximilian N.</creator><creator>Huang, Chelsea X.</creator><creator>Isopi, Giovanni</creator><creator>Kostov, Veselin B.</creator><creator>Kristiansen, Martti H.</creator><creator>Latham, David W.</creator><creator>Mallia, Franco</creator><creator>Mamajek, Eric E.</creator><creator>Mireles, Ismael</creator><creator>Quinn, Samuel N.</creator><creator>Ricker, George R.</creator><creator>Schulte, Jack</creator><creator>Seager, S.</creator><creator>Suissa, Gabrielle</creator><creator>Winn, Joshua N.</creator><creator>Youngblood, Allison</creator><creator>Zapparata, Aldo</creator><general>The American Astronomical Society</general><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-3164-9086</orcidid><orcidid>https://orcid.org/0000-0003-4471-1042</orcidid><orcidid>https://orcid.org/0000-0003-0918-7484</orcidid><orcidid>https://orcid.org/0000-0001-5347-7062</orcidid><orcidid>https://orcid.org/0000-0002-6778-7552</orcidid><orcidid>https://orcid.org/0000-0001-5724-1807</orcidid><orcidid>https://orcid.org/0000-0002-4510-2268</orcidid><orcidid>https://orcid.org/0000-0002-2607-138X</orcidid><orcidid>https://orcid.org/0000-0003-2008-1488</orcidid><orcidid>https://orcid.org/0000-0001-7246-5438</orcidid><orcidid>https://orcid.org/0000-0001-7139-2724</orcidid><orcidid>https://orcid.org/0000-0002-9003-484X</orcidid><orcidid>https://orcid.org/0000-0001-6763-6562</orcidid><orcidid>https://orcid.org/0000-0002-8458-0588</orcidid><orcidid>https://orcid.org/0000-0002-6892-6948</orcidid><orcidid>https://orcid.org/0000-0002-7382-0160</orcidid><orcidid>https://orcid.org/0000-0002-4265-047X</orcidid><orcidid>https://orcid.org/0000-0001-9269-8060</orcidid><orcidid>https://orcid.org/0000-0002-1176-3391</orcidid><orcidid>https://orcid.org/0000-0001-9911-7388</orcidid><orcidid>https://orcid.org/0000-0001-9786-1031</orcidid><orcidid>https://orcid.org/0000-0001-6285-267X</orcidid><orcidid>https://orcid.org/0000-0003-1309-2904</orcidid><orcidid>https://orcid.org/0000-0002-9428-1573</orcidid><orcidid>https://orcid.org/0000-0003-2058-6662</orcidid><orcidid>https://orcid.org/0000-0002-0388-8004</orcidid><orcidid>https://orcid.org/0000-0001-8933-6878</orcidid><orcidid>https://orcid.org/0000-0003-3904-6754</orcidid><orcidid>https://orcid.org/0000-0002-4715-9460</orcidid><orcidid>https://orcid.org/0000-0001-8812-0565</orcidid><orcidid>https://orcid.org/0000-0002-7084-0529</orcidid><orcidid>https://orcid.org/0000-0002-8964-8377</orcidid></search><sort><creationdate>20230201</creationdate><title>A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700</title><author>Gilbert, Emily A. ; Vanderburg, Andrew ; Rodriguez, Joseph E. ; Hord, Benjamin J. ; Clement, Matthew S. ; Barclay, Thomas ; Quintana, Elisa V. ; Schlieder, Joshua E. ; Kane, Stephen R. ; Jenkins, Jon M. ; Twicken, Joseph D. ; Kunimoto, Michelle ; Vanderspek, Roland ; Arney, Giada N. ; Charbonneau, David ; Günther, Maximilian N. ; Huang, Chelsea X. ; Isopi, Giovanni ; Kostov, Veselin B. ; Kristiansen, Martti H. ; Latham, David W. ; Mallia, Franco ; Mamajek, Eric E. ; Mireles, Ismael ; Quinn, Samuel N. ; Ricker, George R. ; Schulte, Jack ; Seager, S. ; Suissa, Gabrielle ; Winn, Joshua N. ; Youngblood, Allison ; Zapparata, Aldo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-7379e624db89c80d7ea4b75913b9fc22278c514f27a9cefce19d74472b2e87b63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Astronomy data analysis</topic><topic>Circumstellar habitable zone</topic><topic>Exoplanet systems</topic><topic>Extrasolar planets</topic><topic>Low-mass stars</topic><topic>M-dwarf stars</topic><topic>Orbits</topic><topic>Planet detection</topic><topic>Satellites</topic><topic>Stars</topic><topic>Transit</topic><topic>Transit photometry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gilbert, Emily A.</creatorcontrib><creatorcontrib>Vanderburg, Andrew</creatorcontrib><creatorcontrib>Rodriguez, Joseph E.</creatorcontrib><creatorcontrib>Hord, Benjamin J.</creatorcontrib><creatorcontrib>Clement, Matthew S.</creatorcontrib><creatorcontrib>Barclay, Thomas</creatorcontrib><creatorcontrib>Quintana, Elisa V.</creatorcontrib><creatorcontrib>Schlieder, Joshua E.</creatorcontrib><creatorcontrib>Kane, Stephen R.</creatorcontrib><creatorcontrib>Jenkins, Jon M.</creatorcontrib><creatorcontrib>Twicken, Joseph D.</creatorcontrib><creatorcontrib>Kunimoto, Michelle</creatorcontrib><creatorcontrib>Vanderspek, Roland</creatorcontrib><creatorcontrib>Arney, Giada N.</creatorcontrib><creatorcontrib>Charbonneau, David</creatorcontrib><creatorcontrib>Günther, Maximilian N.</creatorcontrib><creatorcontrib>Huang, Chelsea X.</creatorcontrib><creatorcontrib>Isopi, Giovanni</creatorcontrib><creatorcontrib>Kostov, Veselin B.</creatorcontrib><creatorcontrib>Kristiansen, Martti H.</creatorcontrib><creatorcontrib>Latham, David W.</creatorcontrib><creatorcontrib>Mallia, Franco</creatorcontrib><creatorcontrib>Mamajek, Eric E.</creatorcontrib><creatorcontrib>Mireles, Ismael</creatorcontrib><creatorcontrib>Quinn, Samuel N.</creatorcontrib><creatorcontrib>Ricker, George R.</creatorcontrib><creatorcontrib>Schulte, Jack</creatorcontrib><creatorcontrib>Seager, S.</creatorcontrib><creatorcontrib>Suissa, Gabrielle</creatorcontrib><creatorcontrib>Winn, Joshua N.</creatorcontrib><creatorcontrib>Youngblood, Allison</creatorcontrib><creatorcontrib>Zapparata, Aldo</creatorcontrib><collection>IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Astrophysical journal. Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gilbert, Emily A.</au><au>Vanderburg, Andrew</au><au>Rodriguez, Joseph E.</au><au>Hord, Benjamin J.</au><au>Clement, Matthew S.</au><au>Barclay, Thomas</au><au>Quintana, Elisa V.</au><au>Schlieder, Joshua E.</au><au>Kane, Stephen R.</au><au>Jenkins, Jon M.</au><au>Twicken, Joseph D.</au><au>Kunimoto, Michelle</au><au>Vanderspek, Roland</au><au>Arney, Giada N.</au><au>Charbonneau, David</au><au>Günther, Maximilian N.</au><au>Huang, Chelsea X.</au><au>Isopi, Giovanni</au><au>Kostov, Veselin B.</au><au>Kristiansen, Martti H.</au><au>Latham, David W.</au><au>Mallia, Franco</au><au>Mamajek, Eric E.</au><au>Mireles, Ismael</au><au>Quinn, Samuel N.</au><au>Ricker, George R.</au><au>Schulte, Jack</au><au>Seager, S.</au><au>Suissa, Gabrielle</au><au>Winn, Joshua N.</au><au>Youngblood, Allison</au><au>Zapparata, Aldo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700</atitle><jtitle>Astrophysical journal. Letters</jtitle><stitle>APJL</stitle><addtitle>Astrophys. J. Lett</addtitle><date>2023-02-01</date><risdate>2023</risdate><volume>944</volume><issue>2</issue><spage>L35</spage><pages>L35-</pages><issn>2041-8205</issn><eissn>2041-8213</eissn><abstract>We report the discovery of TOI-700 e, a 0.95
R
⊕
planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission. The host star, TOI-700 (TIC 150428135), is a nearby (31.1 pc), inactive, M2.5 dwarf (
V
mag
= 13.15). TOI-700 is already known to host three planets, including the small, HZ planet, TOI-700 d. The new planet has an orbital period of 27.8 days, and based on its radius (0.95
R
⊕
), it is likely rocky. TOI-700 was observed for 21 sectors over Years 1 and 3 of the TESS mission, including 10 sectors at 20 s cadence in Year 3. Using this full set of TESS data and additional follow-up observations, we identify, validate, and characterize TOI-700 e. This discovery adds another world to the short list of small, HZ planets transiting nearby and bright host stars. Such systems, where the stars are bright enough that follow-up observations are possible to constrain planet masses and atmospheres using current and future facilities, are incredibly valuable. The presence of multiple small, HZ planets makes this system even more enticing for follow-up observations.</abstract><cop>Austin</cop><pub>The American Astronomical Society</pub><doi>10.3847/2041-8213/acb599</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-3164-9086</orcidid><orcidid>https://orcid.org/0000-0003-4471-1042</orcidid><orcidid>https://orcid.org/0000-0003-0918-7484</orcidid><orcidid>https://orcid.org/0000-0001-5347-7062</orcidid><orcidid>https://orcid.org/0000-0002-6778-7552</orcidid><orcidid>https://orcid.org/0000-0001-5724-1807</orcidid><orcidid>https://orcid.org/0000-0002-4510-2268</orcidid><orcidid>https://orcid.org/0000-0002-2607-138X</orcidid><orcidid>https://orcid.org/0000-0003-2008-1488</orcidid><orcidid>https://orcid.org/0000-0001-7246-5438</orcidid><orcidid>https://orcid.org/0000-0001-7139-2724</orcidid><orcidid>https://orcid.org/0000-0002-9003-484X</orcidid><orcidid>https://orcid.org/0000-0001-6763-6562</orcidid><orcidid>https://orcid.org/0000-0002-8458-0588</orcidid><orcidid>https://orcid.org/0000-0002-6892-6948</orcidid><orcidid>https://orcid.org/0000-0002-7382-0160</orcidid><orcidid>https://orcid.org/0000-0002-4265-047X</orcidid><orcidid>https://orcid.org/0000-0001-9269-8060</orcidid><orcidid>https://orcid.org/0000-0002-1176-3391</orcidid><orcidid>https://orcid.org/0000-0001-9911-7388</orcidid><orcidid>https://orcid.org/0000-0001-9786-1031</orcidid><orcidid>https://orcid.org/0000-0001-6285-267X</orcidid><orcidid>https://orcid.org/0000-0003-1309-2904</orcidid><orcidid>https://orcid.org/0000-0002-9428-1573</orcidid><orcidid>https://orcid.org/0000-0003-2058-6662</orcidid><orcidid>https://orcid.org/0000-0002-0388-8004</orcidid><orcidid>https://orcid.org/0000-0001-8933-6878</orcidid><orcidid>https://orcid.org/0000-0003-3904-6754</orcidid><orcidid>https://orcid.org/0000-0002-4715-9460</orcidid><orcidid>https://orcid.org/0000-0001-8812-0565</orcidid><orcidid>https://orcid.org/0000-0002-7084-0529</orcidid><orcidid>https://orcid.org/0000-0002-8964-8377</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2041-8205 |
| ispartof | Astrophysical journal. Letters, 2023-02, Vol.944 (2), p.L35 |
| issn | 2041-8205 2041-8213 |
| language | eng |
| recordid | cdi_proquest_journals_2777448659 |
| source | IOP Publishing Free Content; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; IOPscience extra; Alma/SFX Local Collection |
| subjects | Astronomy data analysis Circumstellar habitable zone Exoplanet systems Extrasolar planets Low-mass stars M-dwarf stars Orbits Planet detection Satellites Stars Transit Transit photometry |
| title | A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700 |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T06%3A29%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_iop_j&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20Second%20Earth-sized%20Planet%20in%20the%20Habitable%20Zone%20of%20the%20M%20Dwarf,%20TOI-700&rft.jtitle=Astrophysical%20journal.%20Letters&rft.au=Gilbert,%20Emily%20A.&rft.date=2023-02-01&rft.volume=944&rft.issue=2&rft.spage=L35&rft.pages=L35-&rft.issn=2041-8205&rft.eissn=2041-8213&rft_id=info:doi/10.3847/2041-8213/acb599&rft_dat=%3Cproquest_iop_j%3E2777448659%3C/proquest_iop_j%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2777448659&rft_id=info:pmid/&rft_doaj_id=oai_doaj_org_article_af3d036a9f1a47faabb5f5d5ac0811ad&rfr_iscdi=true |