Near Infrared Spectroscopy and the Search for CO Emission in 3 Extremely Luminous IRAS Sources
Rest-frame 0.48–1.1 μm emission line strengths and molecular gas mass (H 2 ) upper limits for three luminous infrared sources – the hyperluminous infrared galaxies (HyLIGs: L ir ≥ 10 13 L ⊙ where L ir ~ L (8 – 1000μm) IRAS F09105+4108 ( z = 0.4417), IRAS F15307+3252 ( z = 0.926), and the optically-s...
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| Veröffentlicht in: | Symposium - International Astronomical Union 1999, Vol.186, p.354-354 |
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| creator | Evans, Aaron S. Sanders, D.B. Cutri, Roc M. Radford, Simon J.E. Solomon, Phil M. Downes, Dennis Kramer, Carsten |
| description | Rest-frame 0.48–1.1 μm emission line strengths and molecular gas mass (H
2
) upper limits for three luminous infrared sources – the hyperluminous infrared galaxies (HyLIGs:
L
ir
≥ 10
13
L
⊙
where
L
ir
~
L
(8 – 1000μm) IRAS F09105+4108 (
z
= 0.4417), IRAS F15307+3252 (
z
= 0.926), and the optically-selected QSO PG 1634+706 (
z
= 1.338) - are presented. Diagnostic emission-line ratios ([O III] λ5007/Hβ, [S II] λ6724/Hα, [N II] λ6583/Hα, and [S III] λλ9069+9532/Hα) indicate a Seyfert 2-like spectrum for both infrared galaxies, consistent with previously published work. Upper limits on the molecular gas mass for all three sources are
M
(H
2
) < 1 - 3 × 10
10
h
−2
M
⊙
(
q
0
= 0.5,
H
0
= 100
h
km s
−1
Mpc
−1
), less than the H
2
mass of the most gas-rich infrared galaxies in the local Universe. All three sources have
L
ir
/
L′
CO
~ 1300 – 2000, the most extreme values for extragalactic sources measured to date. Given the relatively warm far-infrared colors for all three objects, much of their infrared luminosity may emanate from a relatively small quantity of hot dust near an AGN. |
| doi_str_mv | 10.1017/S0074180900113014 |
| format | Article |
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2
) upper limits for three luminous infrared sources – the hyperluminous infrared galaxies (HyLIGs:
L
ir
≥ 10
13
L
⊙
where
L
ir
~
L
(8 – 1000μm) IRAS F09105+4108 (
z
= 0.4417), IRAS F15307+3252 (
z
= 0.926), and the optically-selected QSO PG 1634+706 (
z
= 1.338) - are presented. Diagnostic emission-line ratios ([O III] λ5007/Hβ, [S II] λ6724/Hα, [N II] λ6583/Hα, and [S III] λλ9069+9532/Hα) indicate a Seyfert 2-like spectrum for both infrared galaxies, consistent with previously published work. Upper limits on the molecular gas mass for all three sources are
M
(H
2
) < 1 - 3 × 10
10
h
−2
M
⊙
(
q
0
= 0.5,
H
0
= 100
h
km s
−1
Mpc
−1
), less than the H
2
mass of the most gas-rich infrared galaxies in the local Universe. All three sources have
L
ir
/
L′
CO
~ 1300 – 2000, the most extreme values for extragalactic sources measured to date. Given the relatively warm far-infrared colors for all three objects, much of their infrared luminosity may emanate from a relatively small quantity of hot dust near an AGN.</description><identifier>ISSN: 0074-1809</identifier><identifier>DOI: 10.1017/S0074180900113014</identifier><language>eng</language><ispartof>Symposium - International Astronomical Union, 1999, Vol.186, p.354-354</ispartof><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c170t-507fc933776d1c9ab38ec32adada9eddb76e53ba85bef212b5be733b4a4c6d4d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Evans, Aaron S.</creatorcontrib><creatorcontrib>Sanders, D.B.</creatorcontrib><creatorcontrib>Cutri, Roc M.</creatorcontrib><creatorcontrib>Radford, Simon J.E.</creatorcontrib><creatorcontrib>Solomon, Phil M.</creatorcontrib><creatorcontrib>Downes, Dennis</creatorcontrib><creatorcontrib>Kramer, Carsten</creatorcontrib><title>Near Infrared Spectroscopy and the Search for CO Emission in 3 Extremely Luminous IRAS Sources</title><title>Symposium - International Astronomical Union</title><description>Rest-frame 0.48–1.1 μm emission line strengths and molecular gas mass (H
2
) upper limits for three luminous infrared sources – the hyperluminous infrared galaxies (HyLIGs:
L
ir
≥ 10
13
L
⊙
where
L
ir
~
L
(8 – 1000μm) IRAS F09105+4108 (
z
= 0.4417), IRAS F15307+3252 (
z
= 0.926), and the optically-selected QSO PG 1634+706 (
z
= 1.338) - are presented. Diagnostic emission-line ratios ([O III] λ5007/Hβ, [S II] λ6724/Hα, [N II] λ6583/Hα, and [S III] λλ9069+9532/Hα) indicate a Seyfert 2-like spectrum for both infrared galaxies, consistent with previously published work. Upper limits on the molecular gas mass for all three sources are
M
(H
2
) < 1 - 3 × 10
10
h
−2
M
⊙
(
q
0
= 0.5,
H
0
= 100
h
km s
−1
Mpc
−1
), less than the H
2
mass of the most gas-rich infrared galaxies in the local Universe. All three sources have
L
ir
/
L′
CO
~ 1300 – 2000, the most extreme values for extragalactic sources measured to date. Given the relatively warm far-infrared colors for all three objects, much of their infrared luminosity may emanate from a relatively small quantity of hot dust near an AGN.</description><issn>0074-1809</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNplUM1qhDAYzKGFLtt9gN6-F7DNZ9TocRHbCtKF2l4rMflkLesPiUJ9-yrtbZnDwMwwDMPYA_JH5CifSs5lgDFPOEcUHIMbttskb9Pu2MG5b75aYZzEMe7Y1xspC3nfWGXJQDmSnuzg9DAuoHoD05mgXCP6DM1gIT1B1rXOtUMPbQ8Csp_JUkeXBYq5a_thdpC_H0soh9lqcvfstlEXR4d_3rPP5-wjffWK00ueHgtPo-STF3LZ6EQIKSODOlG1iEkLX5kVCRlTy4hCUas4rKnx0a9XlkLUgQp0ZAIj9gz_evU63llqqtG2nbJLhbzafqmufhG_tRFX7Q</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>Evans, Aaron S.</creator><creator>Sanders, D.B.</creator><creator>Cutri, Roc M.</creator><creator>Radford, Simon J.E.</creator><creator>Solomon, Phil M.</creator><creator>Downes, Dennis</creator><creator>Kramer, Carsten</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1999</creationdate><title>Near Infrared Spectroscopy and the Search for CO Emission in 3 Extremely Luminous IRAS Sources</title><author>Evans, Aaron S. ; Sanders, D.B. ; Cutri, Roc M. ; Radford, Simon J.E. ; Solomon, Phil M. ; Downes, Dennis ; Kramer, Carsten</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c170t-507fc933776d1c9ab38ec32adada9eddb76e53ba85bef212b5be733b4a4c6d4d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Evans, Aaron S.</creatorcontrib><creatorcontrib>Sanders, D.B.</creatorcontrib><creatorcontrib>Cutri, Roc M.</creatorcontrib><creatorcontrib>Radford, Simon J.E.</creatorcontrib><creatorcontrib>Solomon, Phil M.</creatorcontrib><creatorcontrib>Downes, Dennis</creatorcontrib><creatorcontrib>Kramer, Carsten</creatorcontrib><collection>CrossRef</collection><jtitle>Symposium - International Astronomical Union</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Evans, Aaron S.</au><au>Sanders, D.B.</au><au>Cutri, Roc M.</au><au>Radford, Simon J.E.</au><au>Solomon, Phil M.</au><au>Downes, Dennis</au><au>Kramer, Carsten</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Near Infrared Spectroscopy and the Search for CO Emission in 3 Extremely Luminous IRAS Sources</atitle><jtitle>Symposium - International Astronomical Union</jtitle><date>1999</date><risdate>1999</risdate><volume>186</volume><spage>354</spage><epage>354</epage><pages>354-354</pages><issn>0074-1809</issn><abstract>Rest-frame 0.48–1.1 μm emission line strengths and molecular gas mass (H
2
) upper limits for three luminous infrared sources – the hyperluminous infrared galaxies (HyLIGs:
L
ir
≥ 10
13
L
⊙
where
L
ir
~
L
(8 – 1000μm) IRAS F09105+4108 (
z
= 0.4417), IRAS F15307+3252 (
z
= 0.926), and the optically-selected QSO PG 1634+706 (
z
= 1.338) - are presented. Diagnostic emission-line ratios ([O III] λ5007/Hβ, [S II] λ6724/Hα, [N II] λ6583/Hα, and [S III] λλ9069+9532/Hα) indicate a Seyfert 2-like spectrum for both infrared galaxies, consistent with previously published work. Upper limits on the molecular gas mass for all three sources are
M
(H
2
) < 1 - 3 × 10
10
h
−2
M
⊙
(
q
0
= 0.5,
H
0
= 100
h
km s
−1
Mpc
−1
), less than the H
2
mass of the most gas-rich infrared galaxies in the local Universe. All three sources have
L
ir
/
L′
CO
~ 1300 – 2000, the most extreme values for extragalactic sources measured to date. Given the relatively warm far-infrared colors for all three objects, much of their infrared luminosity may emanate from a relatively small quantity of hot dust near an AGN.</abstract><doi>10.1017/S0074180900113014</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Symposium - International Astronomical Union, 1999, Vol.186, p.354-354 |
| issn | 0074-1809 |
| language | eng |
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| source | Alma/SFX Local Collection |
| title | Near Infrared Spectroscopy and the Search for CO Emission in 3 Extremely Luminous IRAS Sources |
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