Dusty starburst galaxies in the early Universe as revealed by gravitational lensing
In the past decade, our understanding of galaxy evolution has been revolutionized by the discovery that luminous, dusty, starburst galaxies were 1,000 times more abundant in the early Universe than at present. It has, however, been difficult to measure the complete redshift 2 distribution of these o...
| Hlavní autoři: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Médium: | Journal article |
| Vydáno: |
2013
|
| _version_ | 1826293790064771072 |
|---|---|
| author | Vieira, J Marrone, D Chapman, S Breuck, C Hezaveh, Y Weiss, A Aguirre, J Aird, K Aravena, M Ashby, M Bayliss, M Benson, B Biggs, A Bleem, L Bock, J Bothwell, M Bradford, C Brodwin, M Carlstrom, J Chang, C Crawford, T Crites, A Haan, T Dobbs, M Fomalont, E |
| author_facet | Vieira, J Marrone, D Chapman, S Breuck, C Hezaveh, Y Weiss, A Aguirre, J Aird, K Aravena, M Ashby, M Bayliss, M Benson, B Biggs, A Bleem, L Bock, J Bothwell, M Bradford, C Brodwin, M Carlstrom, J Chang, C Crawford, T Crites, A Haan, T Dobbs, M Fomalont, E |
| author_sort | Vieira, J |
| collection | OXFORD |
| description | In the past decade, our understanding of galaxy evolution has been revolutionized by the discovery that luminous, dusty, starburst galaxies were 1,000 times more abundant in the early Universe than at present. It has, however, been difficult to measure the complete redshift 2 distribution of these objects, especially at the highest redshifts (z > 4). Here we report a redshift survey at a wavelength of three millimeters, targeting carbon monoxide line emission from the star-forming molecular gas in the direction of extraordinarily bright millimetrewave-selected sources. High-resolution imaging demonstrates that these sources are strongly gravitationally lensed by foreground galaxies. We detect spectral lines in 23 out of 26 sources and multiple lines in 12 of those 23 sources, from which we obtain robust, unambiguous redshifts. At least 10 of the sources are found to lie at z > 4, indicating that the fraction of dusty starburst galaxies at high redshifts is greater than previously thought. Models of lens geometries in the sample indicate that the background objects are ultra-luminous infrared galaxies, powered by extreme bursts of star formation. |
| first_indexed | 2024-03-07T03:35:35Z |
| format | Journal article |
| id | oxford-uuid:bc2c9611-6b29-4d49-b67b-1c96ea103620 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:35:35Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:bc2c9611-6b29-4d49-b67b-1c96ea1036202022-03-27T05:22:33ZDusty starburst galaxies in the early Universe as revealed by gravitational lensingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bc2c9611-6b29-4d49-b67b-1c96ea103620Symplectic Elements at Oxford2013Vieira, JMarrone, DChapman, SBreuck, CHezaveh, YWeiss, AAguirre, JAird, KAravena, MAshby, MBayliss, MBenson, BBiggs, ABleem, LBock, JBothwell, MBradford, CBrodwin, MCarlstrom, JChang, CCrawford, TCrites, AHaan, TDobbs, MFomalont, EIn the past decade, our understanding of galaxy evolution has been revolutionized by the discovery that luminous, dusty, starburst galaxies were 1,000 times more abundant in the early Universe than at present. It has, however, been difficult to measure the complete redshift 2 distribution of these objects, especially at the highest redshifts (z > 4). Here we report a redshift survey at a wavelength of three millimeters, targeting carbon monoxide line emission from the star-forming molecular gas in the direction of extraordinarily bright millimetrewave-selected sources. High-resolution imaging demonstrates that these sources are strongly gravitationally lensed by foreground galaxies. We detect spectral lines in 23 out of 26 sources and multiple lines in 12 of those 23 sources, from which we obtain robust, unambiguous redshifts. At least 10 of the sources are found to lie at z > 4, indicating that the fraction of dusty starburst galaxies at high redshifts is greater than previously thought. Models of lens geometries in the sample indicate that the background objects are ultra-luminous infrared galaxies, powered by extreme bursts of star formation. |
| spellingShingle | Vieira, J Marrone, D Chapman, S Breuck, C Hezaveh, Y Weiss, A Aguirre, J Aird, K Aravena, M Ashby, M Bayliss, M Benson, B Biggs, A Bleem, L Bock, J Bothwell, M Bradford, C Brodwin, M Carlstrom, J Chang, C Crawford, T Crites, A Haan, T Dobbs, M Fomalont, E Dusty starburst galaxies in the early Universe as revealed by gravitational lensing |
| title | Dusty starburst galaxies in the early Universe as revealed by
gravitational lensing |
| title_full | Dusty starburst galaxies in the early Universe as revealed by
gravitational lensing |
| title_fullStr | Dusty starburst galaxies in the early Universe as revealed by
gravitational lensing |
| title_full_unstemmed | Dusty starburst galaxies in the early Universe as revealed by
gravitational lensing |
| title_short | Dusty starburst galaxies in the early Universe as revealed by
gravitational lensing |
| title_sort | dusty starburst galaxies in the early universe as revealed by gravitational lensing |
| work_keys_str_mv | AT vieiraj dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT marroned dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT chapmans dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT breuckc dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT hezavehy dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT weissa dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT aguirrej dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT airdk dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT aravenam dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT ashbym dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT baylissm dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT bensonb dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT biggsa dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT bleeml dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT bockj dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT bothwellm dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT bradfordc dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT brodwinm dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT carlstromj dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT changc dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT crawfordt dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT critesa dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT haant dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT dobbsm dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing AT fomalonte dustystarburstgalaxiesintheearlyuniverseasrevealedbygravitationallensing |