BULGE-FORMING GALAXIES WITH AN EXTENDED ROTATING DISK AT z ∼ 2
ABSTRACT We present 0 2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m for 25 H -seleced star-forming galaxies around the main sequence at z = 2.2-2.5. We detect significant 870 m continuum emission in 16 (64%) of these galaxies. The high-resolution maps reveal that th...
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| creator | Tadaki, Ken-ichi Genzel, Reinhard Kodama, Tadayuki Wuyts, Stijn Wisnioski, Emily Schreiber, Natascha M. Förster Burkert, Andreas Lang, Philipp Tacconi, Linda J. Lutz, Dieter Belli, Sirio Davies, Richard I. Hatsukade, Bunyo Hayashi, Masao Herrera-Camus, Rodrigo Ikarashi, Soh Inoue, Shigeki Kohno, Kotaro Koyama, Yusei Mendel, J. Trevor Nakanishi, Kouichiro Shimakawa, Rhythm Suzuki, Tomoko L. Tamura, Yoichi Tanaka, Ichi Übler, Hannah Wilman, Dave J. |
| description | ABSTRACT We present 0 2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m for 25 H -seleced star-forming galaxies around the main sequence at z = 2.2-2.5. We detect significant 870 m continuum emission in 16 (64%) of these galaxies. The high-resolution maps reveal that the dust emission is mostly radiated from a single region close to the galaxy center. Exploiting the visibility data taken over a wide uv distance range, we measure the half-light radii of the rest-frame far-infrared emission for the best sample of 12 massive galaxies with log(M*/M ) > 11. We find nine galaxies to be associated with extremely compact dust emission with R1/2,870 m < 1.5 kpc, which is more than a factor of 2 smaller than their rest-optical sizes, , and is comparable with optical sizes of massive quiescent galaxies at similar redshifts. As they have an exponential disk with Sérsic index of in the rest-optical, they are likely to be in the transition phase from extended disks to compact spheroids. Given their high star formation rate surface densities within the central 1 kpc of M yr−1 kpc−2, the intense circumnuclear starbursts can rapidly build up a central bulge with M*,1 kpc > 1010 M kpc−2 in several hundred megayears, i.e., by z ∼ 2. Moreover, ionized gas kinematics reveal that they are rotation supported with an angular momentum as large as that of typical star-forming galaxies at z = 1-3. Our results suggest that bulges are commonly formed in extended rotating disks by internal processes, not involving major mergers. |
| doi_str_mv | 10.3847/1538-4357/834/2/135 |
| format | Article |
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Förster ; Burkert, Andreas ; Lang, Philipp ; Tacconi, Linda J. ; Lutz, Dieter ; Belli, Sirio ; Davies, Richard I. ; Hatsukade, Bunyo ; Hayashi, Masao ; Herrera-Camus, Rodrigo ; Ikarashi, Soh ; Inoue, Shigeki ; Kohno, Kotaro ; Koyama, Yusei ; Mendel, J. Trevor ; Nakanishi, Kouichiro ; Shimakawa, Rhythm ; Suzuki, Tomoko L. ; Tamura, Yoichi ; Tanaka, Ichi ; Übler, Hannah ; Wilman, Dave J.</creator><creatorcontrib>Tadaki, Ken-ichi ; Genzel, Reinhard ; Kodama, Tadayuki ; Wuyts, Stijn ; Wisnioski, Emily ; Schreiber, Natascha M. Förster ; Burkert, Andreas ; Lang, Philipp ; Tacconi, Linda J. ; Lutz, Dieter ; Belli, Sirio ; Davies, Richard I. ; Hatsukade, Bunyo ; Hayashi, Masao ; Herrera-Camus, Rodrigo ; Ikarashi, Soh ; Inoue, Shigeki ; Kohno, Kotaro ; Koyama, Yusei ; Mendel, J. Trevor ; Nakanishi, Kouichiro ; Shimakawa, Rhythm ; Suzuki, Tomoko L. ; Tamura, Yoichi ; Tanaka, Ichi ; Übler, Hannah ; Wilman, Dave J.</creatorcontrib><description>ABSTRACT We present 0 2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m for 25 H -seleced star-forming galaxies around the main sequence at z = 2.2-2.5. We detect significant 870 m continuum emission in 16 (64%) of these galaxies. The high-resolution maps reveal that the dust emission is mostly radiated from a single region close to the galaxy center. Exploiting the visibility data taken over a wide uv distance range, we measure the half-light radii of the rest-frame far-infrared emission for the best sample of 12 massive galaxies with log(M*/M ) > 11. We find nine galaxies to be associated with extremely compact dust emission with R1/2,870 m < 1.5 kpc, which is more than a factor of 2 smaller than their rest-optical sizes, , and is comparable with optical sizes of massive quiescent galaxies at similar redshifts. As they have an exponential disk with Sérsic index of in the rest-optical, they are likely to be in the transition phase from extended disks to compact spheroids. Given their high star formation rate surface densities within the central 1 kpc of M yr−1 kpc−2, the intense circumnuclear starbursts can rapidly build up a central bulge with M*,1 kpc > 1010 M kpc−2 in several hundred megayears, i.e., by z ∼ 2. Moreover, ionized gas kinematics reveal that they are rotation supported with an angular momentum as large as that of typical star-forming galaxies at z = 1-3. Our results suggest that bulges are commonly formed in extended rotating disks by internal processes, not involving major mergers.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/834/2/135</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>ANGULAR MOMENTUM ; Astrophysics ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; COMPARATIVE EVALUATIONS ; Continuum radiation ; COSMIC DUST ; DENSITY ; DISTANCE ; Dust ; Dust emission ; EMISSION ; Far infrared radiation ; Galactic bulge ; GALACTIC EVOLUTION ; Galactic rotation ; GALAXIES ; galaxies: evolution ; galaxies: high-redshift ; galaxies: ISM ; Infrared emissions ; Kinematics ; PHASE TRANSFORMATIONS ; Phase transitions ; Radio telescopes ; RED SHIFT ; RESOLUTION ; Rest ; Rotating disks ; ROTATION ; SPHEROIDS ; Star & galaxy formation ; Star formation ; Star formation rate ; STARS ; Stars & galaxies ; SURFACES ; Visibility</subject><ispartof>The Astrophysical journal, 2017-01, Vol.834 (2), p.135</ispartof><rights>2017. 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Förster</creatorcontrib><creatorcontrib>Burkert, Andreas</creatorcontrib><creatorcontrib>Lang, Philipp</creatorcontrib><creatorcontrib>Tacconi, Linda J.</creatorcontrib><creatorcontrib>Lutz, Dieter</creatorcontrib><creatorcontrib>Belli, Sirio</creatorcontrib><creatorcontrib>Davies, Richard I.</creatorcontrib><creatorcontrib>Hatsukade, Bunyo</creatorcontrib><creatorcontrib>Hayashi, Masao</creatorcontrib><creatorcontrib>Herrera-Camus, Rodrigo</creatorcontrib><creatorcontrib>Ikarashi, Soh</creatorcontrib><creatorcontrib>Inoue, Shigeki</creatorcontrib><creatorcontrib>Kohno, Kotaro</creatorcontrib><creatorcontrib>Koyama, Yusei</creatorcontrib><creatorcontrib>Mendel, J. Trevor</creatorcontrib><creatorcontrib>Nakanishi, Kouichiro</creatorcontrib><creatorcontrib>Shimakawa, Rhythm</creatorcontrib><creatorcontrib>Suzuki, Tomoko L.</creatorcontrib><creatorcontrib>Tamura, Yoichi</creatorcontrib><creatorcontrib>Tanaka, Ichi</creatorcontrib><creatorcontrib>Übler, Hannah</creatorcontrib><creatorcontrib>Wilman, Dave J.</creatorcontrib><title>BULGE-FORMING GALAXIES WITH AN EXTENDED ROTATING DISK AT z ∼ 2</title><title>The Astrophysical journal</title><addtitle>APJ</addtitle><addtitle>Astrophys. J</addtitle><description>ABSTRACT We present 0 2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m for 25 H -seleced star-forming galaxies around the main sequence at z = 2.2-2.5. We detect significant 870 m continuum emission in 16 (64%) of these galaxies. The high-resolution maps reveal that the dust emission is mostly radiated from a single region close to the galaxy center. Exploiting the visibility data taken over a wide uv distance range, we measure the half-light radii of the rest-frame far-infrared emission for the best sample of 12 massive galaxies with log(M*/M ) > 11. We find nine galaxies to be associated with extremely compact dust emission with R1/2,870 m < 1.5 kpc, which is more than a factor of 2 smaller than their rest-optical sizes, , and is comparable with optical sizes of massive quiescent galaxies at similar redshifts. As they have an exponential disk with Sérsic index of in the rest-optical, they are likely to be in the transition phase from extended disks to compact spheroids. Given their high star formation rate surface densities within the central 1 kpc of M yr−1 kpc−2, the intense circumnuclear starbursts can rapidly build up a central bulge with M*,1 kpc > 1010 M kpc−2 in several hundred megayears, i.e., by z ∼ 2. Moreover, ionized gas kinematics reveal that they are rotation supported with an angular momentum as large as that of typical star-forming galaxies at z = 1-3. Our results suggest that bulges are commonly formed in extended rotating disks by internal processes, not involving major mergers.</description><subject>ANGULAR MOMENTUM</subject><subject>Astrophysics</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>Continuum radiation</subject><subject>COSMIC DUST</subject><subject>DENSITY</subject><subject>DISTANCE</subject><subject>Dust</subject><subject>Dust emission</subject><subject>EMISSION</subject><subject>Far infrared radiation</subject><subject>Galactic bulge</subject><subject>GALACTIC EVOLUTION</subject><subject>Galactic rotation</subject><subject>GALAXIES</subject><subject>galaxies: evolution</subject><subject>galaxies: high-redshift</subject><subject>galaxies: ISM</subject><subject>Infrared emissions</subject><subject>Kinematics</subject><subject>PHASE TRANSFORMATIONS</subject><subject>Phase transitions</subject><subject>Radio telescopes</subject><subject>RED SHIFT</subject><subject>RESOLUTION</subject><subject>Rest</subject><subject>Rotating disks</subject><subject>ROTATION</subject><subject>SPHEROIDS</subject><subject>Star & galaxy formation</subject><subject>Star formation</subject><subject>Star formation rate</subject><subject>STARS</subject><subject>Stars & galaxies</subject><subject>SURFACES</subject><subject>Visibility</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kM1Kw0AURgdRsFafwM2AuIyZv8xkdsY2TYO1hTbF7oZ0MsEUbWImXegT-FA-jU9iQsVuxNXlXs73cTkAXGJ0Q30mXOxR32HUE65PmUtcTL0j0Pu9HoMeQog5nIrVKTizdtOtRMoeuL1bTqLQGc3mD_E0glEwCVZxuICPcTKGwRSGqyScDsMhnM-SIOmQYby4h0EC3-HXxyck5-AkT5-tufiZfbAchclg7ExmUTwIJo5mBDUOY5hkhsg1QinKsORcYEM8fy0F5TzLOMkY870Ua25wLlDKsdQMs4wgYTgntA-u9r2lbQplddEY_aTL7dboRhHic-kRfKCqunzdGduoTbmrt-1jilDuCck9v-uie0rXpbW1yVVVFy9p_aYwUp1Q1alTnTrVClVEtULb1PU-VZTVoTatNgdGVVnecu4f3H_N3xmxe0I</recordid><startdate>20170110</startdate><enddate>20170110</enddate><creator>Tadaki, Ken-ichi</creator><creator>Genzel, Reinhard</creator><creator>Kodama, Tadayuki</creator><creator>Wuyts, Stijn</creator><creator>Wisnioski, Emily</creator><creator>Schreiber, Natascha M. 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Förster ; Burkert, Andreas ; Lang, Philipp ; Tacconi, Linda J. ; Lutz, Dieter ; Belli, Sirio ; Davies, Richard I. ; Hatsukade, Bunyo ; Hayashi, Masao ; Herrera-Camus, Rodrigo ; Ikarashi, Soh ; Inoue, Shigeki ; Kohno, Kotaro ; Koyama, Yusei ; Mendel, J. 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Förster</au><au>Burkert, Andreas</au><au>Lang, Philipp</au><au>Tacconi, Linda J.</au><au>Lutz, Dieter</au><au>Belli, Sirio</au><au>Davies, Richard I.</au><au>Hatsukade, Bunyo</au><au>Hayashi, Masao</au><au>Herrera-Camus, Rodrigo</au><au>Ikarashi, Soh</au><au>Inoue, Shigeki</au><au>Kohno, Kotaro</au><au>Koyama, Yusei</au><au>Mendel, J. Trevor</au><au>Nakanishi, Kouichiro</au><au>Shimakawa, Rhythm</au><au>Suzuki, Tomoko L.</au><au>Tamura, Yoichi</au><au>Tanaka, Ichi</au><au>Übler, Hannah</au><au>Wilman, Dave J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>BULGE-FORMING GALAXIES WITH AN EXTENDED ROTATING DISK AT z ∼ 2</atitle><jtitle>The Astrophysical journal</jtitle><stitle>APJ</stitle><addtitle>Astrophys. J</addtitle><date>2017-01-10</date><risdate>2017</risdate><volume>834</volume><issue>2</issue><spage>135</spage><pages>135-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>ABSTRACT We present 0 2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m for 25 H -seleced star-forming galaxies around the main sequence at z = 2.2-2.5. We detect significant 870 m continuum emission in 16 (64%) of these galaxies. The high-resolution maps reveal that the dust emission is mostly radiated from a single region close to the galaxy center. Exploiting the visibility data taken over a wide uv distance range, we measure the half-light radii of the rest-frame far-infrared emission for the best sample of 12 massive galaxies with log(M*/M ) > 11. We find nine galaxies to be associated with extremely compact dust emission with R1/2,870 m < 1.5 kpc, which is more than a factor of 2 smaller than their rest-optical sizes, , and is comparable with optical sizes of massive quiescent galaxies at similar redshifts. As they have an exponential disk with Sérsic index of in the rest-optical, they are likely to be in the transition phase from extended disks to compact spheroids. Given their high star formation rate surface densities within the central 1 kpc of M yr−1 kpc−2, the intense circumnuclear starbursts can rapidly build up a central bulge with M*,1 kpc > 1010 M kpc−2 in several hundred megayears, i.e., by z ∼ 2. Moreover, ionized gas kinematics reveal that they are rotation supported with an angular momentum as large as that of typical star-forming galaxies at z = 1-3. Our results suggest that bulges are commonly formed in extended rotating disks by internal processes, not involving major mergers.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/834/2/135</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-1485-9401</orcidid><orcidid>https://orcid.org/0000-0002-3560-1346</orcidid><orcidid>https://orcid.org/0000-0001-6879-9822</orcidid><orcidid>https://orcid.org/0000-0002-4937-4738</orcidid><orcidid>https://orcid.org/0000-0002-5615-6018</orcidid><orcidid>https://orcid.org/0000-0003-3735-1931</orcidid><orcidid>https://orcid.org/0000-0001-9728-8909</orcidid><orcidid>https://orcid.org/0000-0002-2993-1576</orcidid><orcidid>https://orcid.org/0000-0003-4807-8117</orcidid><orcidid>https://orcid.org/0000-0002-4052-2394</orcidid><orcidid>https://orcid.org/0000-0002-2775-0595</orcidid><orcidid>https://orcid.org/0000-0002-2767-9653</orcidid><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2017-01, Vol.834 (2), p.135 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_proquest_journals_2365796582 |
| source | IOP Publishing Free Content |
| subjects | ANGULAR MOMENTUM Astrophysics ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COMPARATIVE EVALUATIONS Continuum radiation COSMIC DUST DENSITY DISTANCE Dust Dust emission EMISSION Far infrared radiation Galactic bulge GALACTIC EVOLUTION Galactic rotation GALAXIES galaxies: evolution galaxies: high-redshift galaxies: ISM Infrared emissions Kinematics PHASE TRANSFORMATIONS Phase transitions Radio telescopes RED SHIFT RESOLUTION Rest Rotating disks ROTATION SPHEROIDS Star & galaxy formation Star formation Star formation rate STARS Stars & galaxies SURFACES Visibility |
| title | BULGE-FORMING GALAXIES WITH AN EXTENDED ROTATING DISK AT z ∼ 2 |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T14%3A25%3A38IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_O3W&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=BULGE-FORMING%20GALAXIES%20WITH%20AN%20EXTENDED%20ROTATING%20DISK%20AT%20z%20%E2%88%BC%202&rft.jtitle=The%20Astrophysical%20journal&rft.au=Tadaki,%20Ken-ichi&rft.date=2017-01-10&rft.volume=834&rft.issue=2&rft.spage=135&rft.pages=135-&rft.issn=0004-637X&rft.eissn=1538-4357&rft_id=info:doi/10.3847/1538-4357/834/2/135&rft_dat=%3Cproquest_O3W%3E2365796582%3C/proquest_O3W%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2365796582&rft_id=info:pmid/&rfr_iscdi=true |