SPECTROSCOPIC CONFIRMATION OF YOUNG PLANETARY-MASS COMPANIONS ON WIDE ORBITS
We present moderate-resolution (R ~ 4000-5000) near-infrared integral field spectroscopy of the young (1-5 Myr) 6-14 M sub(jup) companions ROXs 42B b and FW Tau b obtained with Keck/OSIRIS and Gemini-North/NIFS. The spectrum of ROXs 42B b exhibits clear signs of low surface gravity common to young L...
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| Veröffentlicht in: | The Astrophysical journal 2014-03, Vol.784 (1), p.1-21 |
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| creator | Bowler, Brendan P Liu, Michael C Kraus, Adam L Mann, Andrew W |
| description | We present moderate-resolution (R ~ 4000-5000) near-infrared integral field spectroscopy of the young (1-5 Myr) 6-14 M sub(jup) companions ROXs 42B b and FW Tau b obtained with Keck/OSIRIS and Gemini-North/NIFS. The spectrum of ROXs 42B b exhibits clear signs of low surface gravity common to young L dwarfs, confirming its extreme youth, cool temperature, and low mass. Overall, it closely resembles the free-floating 4-7 M sub(jup) L-type Taurus member 2MASS J04373705+2331080. The near-infrared continuum of FW Tau b is mostly flat and lacks the deep absorption features expected for a cool, late-type object. This may be a result of accretion-induced veiling, especially in light of its strong and sustained H alpha emission (EW(H alpha ) [gap] 290 A). Finally, we present near-infrared spectra of the young (~2-10 Myr) low-mass (12-15 M sub(jup)) companions GSC 6214-210 B and SR 12 C and find they best resemble low-gravity M9.5 and M9 substellar templates. |
| doi_str_mv | 10.1088/0004-637X/784/1/65 |
| format | Article |
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The spectrum of ROXs 42B b exhibits clear signs of low surface gravity common to young L dwarfs, confirming its extreme youth, cool temperature, and low mass. Overall, it closely resembles the free-floating 4-7 M sub(jup) L-type Taurus member 2MASS J04373705+2331080. The near-infrared continuum of FW Tau b is mostly flat and lacks the deep absorption features expected for a cool, late-type object. This may be a result of accretion-induced veiling, especially in light of its strong and sustained H alpha emission (EW(H alpha ) [gap] 290 A). Finally, we present near-infrared spectra of the young (~2-10 Myr) low-mass (12-15 M sub(jup)) companions GSC 6214-210 B and SR 12 C and find they best resemble low-gravity M9.5 and M9 substellar templates.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1088/0004-637X/784/1/65</identifier><language>eng</language><publisher>United States</publisher><subject>ABSORPTION ; ACCRETION DISKS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Continuums ; EMISSION ; Flats ; GRAVITATION ; HYDROGEN ; INFRARED SPECTRA ; Integral field spectroscopy ; MASS ; ORBITS ; RESOLUTION ; Spectral emissivity ; SPECTROSCOPY ; STARS ; Surface chemistry ; SURFACES ; VISIBLE RADIATION</subject><ispartof>The Astrophysical journal, 2014-03, Vol.784 (1), p.1-21</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c451t-3a03d6503286c4a0ea1025c851ffee08ccbae4fbb94cfd5b602316a21615f9b43</citedby><cites>FETCH-LOGICAL-c451t-3a03d6503286c4a0ea1025c851ffee08ccbae4fbb94cfd5b602316a21615f9b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,781,785,886,27929,27930</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22351472$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Bowler, Brendan P</creatorcontrib><creatorcontrib>Liu, Michael C</creatorcontrib><creatorcontrib>Kraus, Adam L</creatorcontrib><creatorcontrib>Mann, Andrew W</creatorcontrib><title>SPECTROSCOPIC CONFIRMATION OF YOUNG PLANETARY-MASS COMPANIONS ON WIDE ORBITS</title><title>The Astrophysical journal</title><description>We present moderate-resolution (R ~ 4000-5000) near-infrared integral field spectroscopy of the young (1-5 Myr) 6-14 M sub(jup) companions ROXs 42B b and FW Tau b obtained with Keck/OSIRIS and Gemini-North/NIFS. The spectrum of ROXs 42B b exhibits clear signs of low surface gravity common to young L dwarfs, confirming its extreme youth, cool temperature, and low mass. Overall, it closely resembles the free-floating 4-7 M sub(jup) L-type Taurus member 2MASS J04373705+2331080. The near-infrared continuum of FW Tau b is mostly flat and lacks the deep absorption features expected for a cool, late-type object. This may be a result of accretion-induced veiling, especially in light of its strong and sustained H alpha emission (EW(H alpha ) [gap] 290 A). Finally, we present near-infrared spectra of the young (~2-10 Myr) low-mass (12-15 M sub(jup)) companions GSC 6214-210 B and SR 12 C and find they best resemble low-gravity M9.5 and M9 substellar templates.</description><subject>ABSORPTION</subject><subject>ACCRETION DISKS</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Continuums</subject><subject>EMISSION</subject><subject>Flats</subject><subject>GRAVITATION</subject><subject>HYDROGEN</subject><subject>INFRARED SPECTRA</subject><subject>Integral field spectroscopy</subject><subject>MASS</subject><subject>ORBITS</subject><subject>RESOLUTION</subject><subject>Spectral emissivity</subject><subject>SPECTROSCOPY</subject><subject>STARS</subject><subject>Surface chemistry</subject><subject>SURFACES</subject><subject>VISIBLE RADIATION</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqN0c1Og0AUBeCJ0cRafQFXJG7cYOfODwxLxLaSUCBAo11NYDpETFsqQxe-vZAa165ubvLlLM5B6B7wE2AhZhhjZjvUfZ-5gs1g5vALNAFOhc0ody_R5A9coxtjPseXeN4ERXk6D4osyYMkDQMrSOJFmK38IkxiK1lYm2QdL6008uN54Wcbe-Xn-YBWqR8PIrcG9Ra-zK0kew6L_BZd1eXO6LvfO0XrxbwIXu0oWYaBH9mKcehtWmK6dTimRDiKlViXgAlXgkNda42FUlWpWV1VHlP1llcOJhSckoADvPYqRqfo4Zzbmr6RRjW9Vh-qPRy06iUhlANzyaAez-rYtV8nbXq5b4zSu1150O3JSHBBeOAKoP-gGJhHKRlTyZmqrjWm07U8ds2-7L4lYDluIcdu5Vi1HLaQIB1OfwCdjXRS</recordid><startdate>20140320</startdate><enddate>20140320</enddate><creator>Bowler, Brendan P</creator><creator>Liu, Michael C</creator><creator>Kraus, Adam L</creator><creator>Mann, Andrew W</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20140320</creationdate><title>SPECTROSCOPIC CONFIRMATION OF YOUNG PLANETARY-MASS COMPANIONS ON WIDE ORBITS</title><author>Bowler, Brendan P ; Liu, Michael C ; Kraus, Adam L ; Mann, Andrew W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c451t-3a03d6503286c4a0ea1025c851ffee08ccbae4fbb94cfd5b602316a21615f9b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>ABSORPTION</topic><topic>ACCRETION DISKS</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Continuums</topic><topic>EMISSION</topic><topic>Flats</topic><topic>GRAVITATION</topic><topic>HYDROGEN</topic><topic>INFRARED SPECTRA</topic><topic>Integral field spectroscopy</topic><topic>MASS</topic><topic>ORBITS</topic><topic>RESOLUTION</topic><topic>Spectral emissivity</topic><topic>SPECTROSCOPY</topic><topic>STARS</topic><topic>Surface chemistry</topic><topic>SURFACES</topic><topic>VISIBLE RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bowler, Brendan P</creatorcontrib><creatorcontrib>Liu, Michael C</creatorcontrib><creatorcontrib>Kraus, Adam L</creatorcontrib><creatorcontrib>Mann, Andrew W</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bowler, Brendan P</au><au>Liu, Michael C</au><au>Kraus, Adam L</au><au>Mann, Andrew W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>SPECTROSCOPIC CONFIRMATION OF YOUNG PLANETARY-MASS COMPANIONS ON WIDE ORBITS</atitle><jtitle>The Astrophysical journal</jtitle><date>2014-03-20</date><risdate>2014</risdate><volume>784</volume><issue>1</issue><spage>1</spage><epage>21</epage><pages>1-21</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present moderate-resolution (R ~ 4000-5000) near-infrared integral field spectroscopy of the young (1-5 Myr) 6-14 M sub(jup) companions ROXs 42B b and FW Tau b obtained with Keck/OSIRIS and Gemini-North/NIFS. The spectrum of ROXs 42B b exhibits clear signs of low surface gravity common to young L dwarfs, confirming its extreme youth, cool temperature, and low mass. Overall, it closely resembles the free-floating 4-7 M sub(jup) L-type Taurus member 2MASS J04373705+2331080. The near-infrared continuum of FW Tau b is mostly flat and lacks the deep absorption features expected for a cool, late-type object. This may be a result of accretion-induced veiling, especially in light of its strong and sustained H alpha emission (EW(H alpha ) [gap] 290 A). Finally, we present near-infrared spectra of the young (~2-10 Myr) low-mass (12-15 M sub(jup)) companions GSC 6214-210 B and SR 12 C and find they best resemble low-gravity M9.5 and M9 substellar templates.</abstract><cop>United States</cop><doi>10.1088/0004-637X/784/1/65</doi><tpages>21</tpages><oa>free_for_read</oa></addata></record> |
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| source | Institute of Physics Open Access Journal Titles; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | ABSORPTION ACCRETION DISKS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Continuums EMISSION Flats GRAVITATION HYDROGEN INFRARED SPECTRA Integral field spectroscopy MASS ORBITS RESOLUTION Spectral emissivity SPECTROSCOPY STARS Surface chemistry SURFACES VISIBLE RADIATION |
| title | SPECTROSCOPIC CONFIRMATION OF YOUNG PLANETARY-MASS COMPANIONS ON WIDE ORBITS |
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