A Luminous Dust-obscured Tidal Disruption Event Candidate in a Star-forming Galaxy at 42 Mpc
While the vast majority of tidal disruption events (TDEs) have been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable fraction of TDEs may be dust obscured and thus preferentially detected in the infrared (IR) wave bands. In this Letter,...
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creator | Panagiotou, Christos De, Kishalay Masterson, Megan Kara, Erin Calzadilla, Michael Eilers, Anna-Christina Frostig, Danielle Karambelkar, Viraj Kasliwal, Mansi Lourie, Nathan Meisner, Aaron M. Simcoe, Robert A. Stein, Robert Zolkower, Jeffry |
description | While the vast majority of tidal disruption events (TDEs) have been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable fraction of TDEs may be dust obscured and thus preferentially detected in the infrared (IR) wave bands. In this Letter, we present the discovery of a luminous mid-IR nuclear flare (termed WTP14adbjsh), identified in a systematic transient search of archival images from the NEOWISE mid-IR survey. The source reached a peak luminosity of
L
≃ 10
43
erg s
−1
at 4.6
μ
m in 2015 before fading in the IR with a TDE-like
F
∝
t
−5/3
decline, radiating a total of more than 3 × 10
51
erg in the last 7 yr. The transient event took place in the nearby galaxy NGC 7392, at a distance of around 42 Mpc; yet, no optical or X-ray flare is detected. We interpret the transient as the nearest TDE candidate detected in the last decade, which was missed at other wavelengths due to dust obscuration, hinting at the existence of TDEs that have been historically overlooked. Unlike most previously detected TDEs, the transient was discovered in a star-forming galaxy, corroborating earlier suggestions that dust obscuration suppresses significantly the detection of TDEs in these environments. Our results demonstrate that the study of IR-detected TDEs is critical in order to obtain a complete understanding of the physics of TDEs and to conclude whether TDEs occur preferentially in a particular class of galaxies. |
doi_str_mv | 10.3847/2041-8213/acc02f |
format | Article |
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L
≃ 10
43
erg s
−1
at 4.6
μ
m in 2015 before fading in the IR with a TDE-like
F
∝
t
−5/3
decline, radiating a total of more than 3 × 10
51
erg in the last 7 yr. The transient event took place in the nearby galaxy NGC 7392, at a distance of around 42 Mpc; yet, no optical or X-ray flare is detected. We interpret the transient as the nearest TDE candidate detected in the last decade, which was missed at other wavelengths due to dust obscuration, hinting at the existence of TDEs that have been historically overlooked. Unlike most previously detected TDEs, the transient was discovered in a star-forming galaxy, corroborating earlier suggestions that dust obscuration suppresses significantly the detection of TDEs in these environments. Our results demonstrate that the study of IR-detected TDEs is critical in order to obtain a complete understanding of the physics of TDEs and to conclude whether TDEs occur preferentially in a particular class of galaxies.</description><identifier>ISSN: 2041-8205</identifier><identifier>EISSN: 2041-8213</identifier><identifier>DOI: 10.3847/2041-8213/acc02f</identifier><language>eng</language><publisher>Austin: The American Astronomical Society</publisher><subject>Astrophysical black holes ; Cosmic dust ; Disruption ; Dust ; Galaxies ; Galaxy nuclei ; Luminosity ; Occultation ; Sky surveys (astronomy) ; Star formation ; Stellar flares ; Tidal disruption ; Wavelengths ; X-ray astronomy</subject><ispartof>Astrophysical journal. Letters, 2023-05, Vol.948 (1), p.L5</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-c446t-779df39786525b64a751286d8c09c55e3b8f08576bba515d195540ca6461098d3</citedby><cites>FETCH-LOGICAL-c446t-779df39786525b64a751286d8c09c55e3b8f08576bba515d195540ca6461098d3</cites><orcidid>0000-0003-4127-0739 ; 0000-0002-7197-9004 ; 0000-0003-2434-0387 ; 0000-0002-1125-7384 ; 0000-0003-2758-159X ; 0000-0003-3769-9559 ; 0000-0003-2895-6218 ; 0000-0003-0172-0854 ; 0000-0002-8989-0542 ; 0000-0002-2238-2105 ; 0000-0002-5619-4938</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/acc02f/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>315,781,785,865,2103,27929,27930,38873,38895,53845,53872</link.rule.ids></links><search><creatorcontrib>Panagiotou, Christos</creatorcontrib><creatorcontrib>De, Kishalay</creatorcontrib><creatorcontrib>Masterson, Megan</creatorcontrib><creatorcontrib>Kara, Erin</creatorcontrib><creatorcontrib>Calzadilla, Michael</creatorcontrib><creatorcontrib>Eilers, Anna-Christina</creatorcontrib><creatorcontrib>Frostig, Danielle</creatorcontrib><creatorcontrib>Karambelkar, Viraj</creatorcontrib><creatorcontrib>Kasliwal, Mansi</creatorcontrib><creatorcontrib>Lourie, Nathan</creatorcontrib><creatorcontrib>Meisner, Aaron M.</creatorcontrib><creatorcontrib>Simcoe, Robert A.</creatorcontrib><creatorcontrib>Stein, Robert</creatorcontrib><creatorcontrib>Zolkower, Jeffry</creatorcontrib><title>A Luminous Dust-obscured Tidal Disruption Event Candidate in a Star-forming Galaxy at 42 Mpc</title><title>Astrophysical journal. Letters</title><addtitle>APJL</addtitle><addtitle>Astrophys. J. Lett</addtitle><description>While the vast majority of tidal disruption events (TDEs) have been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable fraction of TDEs may be dust obscured and thus preferentially detected in the infrared (IR) wave bands. In this Letter, we present the discovery of a luminous mid-IR nuclear flare (termed WTP14adbjsh), identified in a systematic transient search of archival images from the NEOWISE mid-IR survey. The source reached a peak luminosity of
L
≃ 10
43
erg s
−1
at 4.6
μ
m in 2015 before fading in the IR with a TDE-like
F
∝
t
−5/3
decline, radiating a total of more than 3 × 10
51
erg in the last 7 yr. The transient event took place in the nearby galaxy NGC 7392, at a distance of around 42 Mpc; yet, no optical or X-ray flare is detected. We interpret the transient as the nearest TDE candidate detected in the last decade, which was missed at other wavelengths due to dust obscuration, hinting at the existence of TDEs that have been historically overlooked. Unlike most previously detected TDEs, the transient was discovered in a star-forming galaxy, corroborating earlier suggestions that dust obscuration suppresses significantly the detection of TDEs in these environments. Our results demonstrate that the study of IR-detected TDEs is critical in order to obtain a complete understanding of the physics of TDEs and to conclude whether TDEs occur preferentially in a particular class of galaxies.</description><subject>Astrophysical black holes</subject><subject>Cosmic dust</subject><subject>Disruption</subject><subject>Dust</subject><subject>Galaxies</subject><subject>Galaxy nuclei</subject><subject>Luminosity</subject><subject>Occultation</subject><subject>Sky surveys (astronomy)</subject><subject>Star formation</subject><subject>Stellar flares</subject><subject>Tidal disruption</subject><subject>Wavelengths</subject><subject>X-ray astronomy</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>eNp1kctv1DAQhyMEEqVw52gJcSN07PiVY7UtpdIiDpQbkjXxo_IqjYPtIPrfkyVoucBpRjO_-ebVNK8pvO80VxcMOG01o90FWgssPGnOTqGnJx_E8-ZFKQcABpLqs-bbJdkvD3FKSyFXS6ltGopdsnfkLjocyVUseZlrTBO5_uGnSnY4uTVTPYkTQfKlYm5DyivintzgiD8fCVbCGfk025fNs4Bj8a_-2PPm64fru93Hdv_55nZ3uW8t57K2SvUudL3SUjAxSI5KUKal0xZ6K4TvBh1ACyWHAQUVjvZCcLAouaTQa9edN7cb1yU8mDnHB8yPJmE0vwMp3xvMNdrRGxgk-HV19JpxoFKvTZQKLOguCNr1K-vNxppz-r74Us0hLXlaxzdMg-IgGJerCjaVzamU7MOpKwVz_Ic5Htwcj2-2f6wlb7eSmOa_TJwPo-m5NtTshZndUffuH7r_Yn8BRzuVYw</recordid><startdate>20230501</startdate><enddate>20230501</enddate><creator>Panagiotou, Christos</creator><creator>De, Kishalay</creator><creator>Masterson, Megan</creator><creator>Kara, Erin</creator><creator>Calzadilla, Michael</creator><creator>Eilers, Anna-Christina</creator><creator>Frostig, Danielle</creator><creator>Karambelkar, Viraj</creator><creator>Kasliwal, Mansi</creator><creator>Lourie, Nathan</creator><creator>Meisner, Aaron M.</creator><creator>Simcoe, Robert A.</creator><creator>Stein, Robert</creator><creator>Zolkower, Jeffry</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/0000-0003-4127-0739</orcidid><orcidid>https://orcid.org/0000-0002-7197-9004</orcidid><orcidid>https://orcid.org/0000-0003-2434-0387</orcidid><orcidid>https://orcid.org/0000-0002-1125-7384</orcidid><orcidid>https://orcid.org/0000-0003-2758-159X</orcidid><orcidid>https://orcid.org/0000-0003-3769-9559</orcidid><orcidid>https://orcid.org/0000-0003-2895-6218</orcidid><orcidid>https://orcid.org/0000-0003-0172-0854</orcidid><orcidid>https://orcid.org/0000-0002-8989-0542</orcidid><orcidid>https://orcid.org/0000-0002-2238-2105</orcidid><orcidid>https://orcid.org/0000-0002-5619-4938</orcidid></search><sort><creationdate>20230501</creationdate><title>A Luminous Dust-obscured Tidal Disruption Event Candidate in a Star-forming Galaxy at 42 Mpc</title><author>Panagiotou, Christos ; 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Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Panagiotou, Christos</au><au>De, Kishalay</au><au>Masterson, Megan</au><au>Kara, Erin</au><au>Calzadilla, Michael</au><au>Eilers, Anna-Christina</au><au>Frostig, Danielle</au><au>Karambelkar, Viraj</au><au>Kasliwal, Mansi</au><au>Lourie, Nathan</au><au>Meisner, Aaron M.</au><au>Simcoe, Robert A.</au><au>Stein, Robert</au><au>Zolkower, Jeffry</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Luminous Dust-obscured Tidal Disruption Event Candidate in a Star-forming Galaxy at 42 Mpc</atitle><jtitle>Astrophysical journal. Letters</jtitle><stitle>APJL</stitle><addtitle>Astrophys. J. Lett</addtitle><date>2023-05-01</date><risdate>2023</risdate><volume>948</volume><issue>1</issue><spage>L5</spage><pages>L5-</pages><issn>2041-8205</issn><eissn>2041-8213</eissn><abstract>While the vast majority of tidal disruption events (TDEs) have been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable fraction of TDEs may be dust obscured and thus preferentially detected in the infrared (IR) wave bands. In this Letter, we present the discovery of a luminous mid-IR nuclear flare (termed WTP14adbjsh), identified in a systematic transient search of archival images from the NEOWISE mid-IR survey. The source reached a peak luminosity of
L
≃ 10
43
erg s
−1
at 4.6
μ
m in 2015 before fading in the IR with a TDE-like
F
∝
t
−5/3
decline, radiating a total of more than 3 × 10
51
erg in the last 7 yr. The transient event took place in the nearby galaxy NGC 7392, at a distance of around 42 Mpc; yet, no optical or X-ray flare is detected. We interpret the transient as the nearest TDE candidate detected in the last decade, which was missed at other wavelengths due to dust obscuration, hinting at the existence of TDEs that have been historically overlooked. Unlike most previously detected TDEs, the transient was discovered in a star-forming galaxy, corroborating earlier suggestions that dust obscuration suppresses significantly the detection of TDEs in these environments. Our results demonstrate that the study of IR-detected TDEs is critical in order to obtain a complete understanding of the physics of TDEs and to conclude whether TDEs occur preferentially in a particular class of galaxies.</abstract><cop>Austin</cop><pub>The American Astronomical Society</pub><doi>10.3847/2041-8213/acc02f</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-4127-0739</orcidid><orcidid>https://orcid.org/0000-0002-7197-9004</orcidid><orcidid>https://orcid.org/0000-0003-2434-0387</orcidid><orcidid>https://orcid.org/0000-0002-1125-7384</orcidid><orcidid>https://orcid.org/0000-0003-2758-159X</orcidid><orcidid>https://orcid.org/0000-0003-3769-9559</orcidid><orcidid>https://orcid.org/0000-0003-2895-6218</orcidid><orcidid>https://orcid.org/0000-0003-0172-0854</orcidid><orcidid>https://orcid.org/0000-0002-8989-0542</orcidid><orcidid>https://orcid.org/0000-0002-2238-2105</orcidid><orcidid>https://orcid.org/0000-0002-5619-4938</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Astrophysical black holes Cosmic dust Disruption Dust Galaxies Galaxy nuclei Luminosity Occultation Sky surveys (astronomy) Star formation Stellar flares Tidal disruption Wavelengths X-ray astronomy |
title | A Luminous Dust-obscured Tidal Disruption Event Candidate in a Star-forming Galaxy at 42 Mpc |
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