The molecular gas content of ULIRG type 2 quasars at z < 1
We present new results of CO(1-0) spectroscopic observations of four Sloan Digital Sky Survey (SDSS) type 2 quasars (QSO2) at z ~ 0.3, observed with the 30-m IRAM radio telescope. The QSO2 have infrared luminosities in the ultra-luminous infrared galaxies (ULIRG) regime. We confirm the CO(1-0) detec...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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2014
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| Online Access: | http://hdl.handle.net/20.500.11937/7354 |
| _version_ | 1848745345111031808 |
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| author | Rodríguez, M. Villar-Martín, M. Emonts, B. Humphrey, A. Drouart, Guillaume García Burillo, S. Pérez Torres, M. |
| author_facet | Rodríguez, M. Villar-Martín, M. Emonts, B. Humphrey, A. Drouart, Guillaume García Burillo, S. Pérez Torres, M. |
| author_sort | Rodríguez, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present new results of CO(1-0) spectroscopic observations of four Sloan Digital Sky Survey (SDSS) type 2 quasars (QSO2) at z ~ 0.3, observed with the 30-m IRAM radio telescope. The QSO2 have infrared luminosities in the ultra-luminous infrared galaxies (ULIRG) regime. We confirm the CO(1-0) detection in one of our four QSO2, SDSS J1543-00, with L'CO and MH2 (1.2 ± 0.2) × 1010 K km s-1 pc2 and (9.4 ± 1.4) × 109 M ?, respectively. The full width at half maximum (FWHM) of the CO(1-0) line is =575 ± 102 km s-1. No CO(1-0) emission is detected in SDSS J0903+02, SDSS J1337-01, SDSS J1520-01 above 3 sigma, yielding upper limits on M(H2) ~ 9.6, 4.3 and 5.1 × 109 M?, respectively. We expand previous studies of the molecular gas content of intermediate z QSO2 into the ULIRG regime. Taking into account nine QSO2 at z ~ 0.3-1.0 from the literature, we discuss the location of the 13 ULIRG QSO2 at z < 1 with available L'CO measurements in the L'CO vs. z and L'CO vs. LFIR diagrams, in comparison with other QSO1 and ULIRG star forming samples. © ESO, 2014. |
| first_indexed | 2025-11-14T06:15:53Z |
| format | Journal Article |
| id | curtin-20.500.11937-7354 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:15:53Z |
| publishDate | 2014 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-73542017-09-13T14:33:46Z The molecular gas content of ULIRG type 2 quasars at z < 1 Rodríguez, M. Villar-Martín, M. Emonts, B. Humphrey, A. Drouart, Guillaume García Burillo, S. Pérez Torres, M. We present new results of CO(1-0) spectroscopic observations of four Sloan Digital Sky Survey (SDSS) type 2 quasars (QSO2) at z ~ 0.3, observed with the 30-m IRAM radio telescope. The QSO2 have infrared luminosities in the ultra-luminous infrared galaxies (ULIRG) regime. We confirm the CO(1-0) detection in one of our four QSO2, SDSS J1543-00, with L'CO and MH2 (1.2 ± 0.2) × 1010 K km s-1 pc2 and (9.4 ± 1.4) × 109 M ?, respectively. The full width at half maximum (FWHM) of the CO(1-0) line is =575 ± 102 km s-1. No CO(1-0) emission is detected in SDSS J0903+02, SDSS J1337-01, SDSS J1520-01 above 3 sigma, yielding upper limits on M(H2) ~ 9.6, 4.3 and 5.1 × 109 M?, respectively. We expand previous studies of the molecular gas content of intermediate z QSO2 into the ULIRG regime. Taking into account nine QSO2 at z ~ 0.3-1.0 from the literature, we discuss the location of the 13 ULIRG QSO2 at z < 1 with available L'CO measurements in the L'CO vs. z and L'CO vs. LFIR diagrams, in comparison with other QSO1 and ULIRG star forming samples. © ESO, 2014. 2014 Journal Article http://hdl.handle.net/20.500.11937/7354 10.1051/0004-6361/201323004 unknown |
| spellingShingle | Rodríguez, M. Villar-Martín, M. Emonts, B. Humphrey, A. Drouart, Guillaume García Burillo, S. Pérez Torres, M. The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title | The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title_full | The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title_fullStr | The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title_full_unstemmed | The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title_short | The molecular gas content of ULIRG type 2 quasars at z < 1 |
| title_sort | molecular gas content of ulirg type 2 quasars at z < 1 |
| url | http://hdl.handle.net/20.500.11937/7354 |