Not-so-little Red Dots: Two Massive and Dusty Starbursts at z ∼ 5-7 Pushing the Limits of Star Formation Discovered by JWST in the COSMOS-Web Survey

被引：4

作者：

Gentile, Fabrizio ^{[1
,2
]}

Casey, Caitlin M. ^{[3
]}

Akins, Hollis B. ^{[3
]}

Franco, Maximilien ^{[3
]}

Mckinney, Jed ^{[3
]}

Berman, Edward ^{[4
]}

Cooper, Olivia R. ^{[3
]}

Drakos, Nicole E. ^{[5
]}

Hirschmann, Michaela ^{[6
,7
]}

Long, Arianna S. ^{[3
]}

Magdis, Georgios ^{[8
,9
,10
]}

Koekemoer, Anton M. ^{[11
]}

Kokorev, Vasily ^{[12
]}

Shuntov, Marko ^{[8
,10
]}

Talia, Margherita ^{[1
,2
]}

Allen, Natalie ^{[8
,10
]}

Harish, Santosh ^{[13
]}

Ilbert, Olivier ^{[14
]}

Mccracken, Henry Joy ^{[15
,16
]}

Kartaltepe, Jeyhan S. ^{[13
]}

Liu, Daizhong ^{[17
]}

Paquereau, Louise ^{[15
,16
]}

Rhodes, Jason ^{[18
]}

Rich, Michael R. ^{[19
]}

Robertson, Brant E. ^{[20
]}

Toft, Sune ^{[8
,10
]}

Gozaliasl, Ghassem ^{[21
,22
]}

机构：

[1] Univ Bologna, Dept Phys & Astron DIFA, Via Gobetti 93-2, I-40129 Bologna, Italy

[2] INAF Osservatorio Astrofis & Sci Spazio, Via Gobetti 93-3, I-40129 Bologna, Italy

[3] Univ Texas Austin, 2515 Speedway Blvd Stop C1400, Austin, TX 78712 USA

[4] Northeastern Univ, Dept Phys, 360 Huntington Ave, Boston, MA USA

[5] Univ Hawaii, Dept Phys & Astron, 200 W Kawili St, Hilo, HI 96720 USA

[6] Ecole Polytech Fed Lausanne, Inst Phys, GalSpec, Observ Sauverny, Chemin Pegasi 51, CH-1290 Versoix, Switzerland

[7] Astron Observ Trieste, INAF, Via Tiepolo 11, I-34131 Trieste, Italy

[8] Cosm Dawn Ctr DAWN, Copenhagen, Denmark

[9] Tech Univ Denmark, DTU Space, Elektrovej 327, DK-2800 Lyngby, Denmark

[10] Univ Copenhagen, Niels Bohr Inst, Jagtvej 128, DK-2200 Copenhagen, Denmark

[11] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[12] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen, Netherlands

[13] Rochester Inst Technol, Sch Phys & Astron, Lab Multiwavelength Astrophys, 84 Lomb Mem Dr, Rochester, NY 14623 USA

[14] Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France

[15] CNRS, Inst Astrophys Paris, UMR 7095, 98 Bis Blvd Arago, F-75014 Paris, France

[16] Sorbonne Univ, 98 Bis Blvd Arago, F-75014 Paris, France

[17] Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210023, Peoples R China

[18] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91001 USA

[19] UCLA, Dept Phys & Astron, PAB 430 Portola Plaza,Box 951547, Los Angeles, CA 90095 USA

[20] Univ Calif Santa Cruz, Dept Astron & Astrophys, 1156 High St, Santa Cruz, CA 95064 USA

[21] Aalto Univ, Dept Comp Sci, POB 15400, FI-00076 Espoo, Finland

[22] Univ Helsinki, Dept Phys, POB 64, Helsinki 00014, Finland

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2024年 / 973卷 / 01期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

STELLAR POPULATION SYNTHESIS; ACTIVE GALACTIC NUCLEI; LESS-THAN; 9; FORMING GALAXIES; SOURCE CATALOG; HUBBLE; EVOLUTION; RADIO; UNCERTAINTIES; CALIBRATION;

D O I：

10.3847/2041-8213/ad738a

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the properties of two candidate massive (M-star similar to 10(11)M(circle dot)) and dusty (A(v) > 2.5 mag) galaxies at z = 5-7 in the first 0.28 deg(2) of the COSMOS-Web survey. One object is spectroscopically confirmed at z(spec) = 5.051, while the other has a robust z(phot) = 6.7 +/- 0.3. Thanks to their extremely red colors (F277W-F444W similar to 1.7 mag), these galaxies satisfy the nominal color selection for the widely studied "little red dot" (LRD) population with the exception of their spatially resolved morphologies. The morphology of our targets allows us to conclude that their red continuum is dominated by highly obscured stellar emission and not by reddened nuclear activity. Using a variety of spectral energy distribution fitting tools and star formation histories, we estimate the stellar masses to be log(M star)=11.32(-0.15)(+0.07)M(circle dot) and log(M star)=11.2(-0.2)(+0.1)M(circle dot), respectively, with a red continuum emission dominated by a recent episode of star formation. We then compare their number density to the halo mass function to infer stellar baryon fractions of is an element of(star) similar to 0.25 and is an element of(star) similar to 0.5. Both are significantly higher than what is commonly observed in lower-z galaxies or more dust-obscured galaxies at similar redshifts. With very bright ultra-high-z Lyman-Break Galaxies and some non-AGN-dominated LRDs, such "extended" LRDs represent another population that may require very efficient star formation at early times.

引用

页数：8

共 87 条

[1] Planck 2018 results: V. CMB power spectra and likelihoods [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Casaponsa, B. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[2] Second data release of the Hyper Suprime-Cam Subaru Strategic Program [J].

Aihara, Hiroaki ;

AlSayyad, Yusra ;

Ando, Makoto ;

Armstrong, Robert ;

Bosch, James ;

Egami, Eiichi ;

Furusawa, Hisanori ;

Furusawa, Junko ;

Goulding, Andy ;

Harikane, Yuichi ;

Hikage, Chiaki ;

Ho, Paul T. P. ;

Hsieh, Bau-Ching ;

Huang, Song ;

Ikeda, Hiroyuki ;

Imanishi, Masatoshi ;

Ito, Kei ;

Iwata, Ikuru ;

Jaelani, Anton T. ;

Kakuma, Ryota ;

Kawana, Kojiro ;

Kikuta, Satoshi ;

Kobayashi, Umi ;

Koike, Michitaro ;

Komiyama, Yutaka ;

Li, Xiangchong ;

Liang, Yongming ;

Lin, Yen-Ting ;

Luo, Wentao ;

Lupton, Robert ;

Lust, Nate B. ;

MacArthur, Lauren A. ;

Matsuoka, Yoshiki ;

Mineo, Sogo ;

Miyatake, Hironao ;

Miyazaki, Satoshi ;

More, Surhud ;

Murata, Ryoma ;

Namiki, Shigeru, V ;

Nishizawa, Atsushi J. ;

Oguri, Masamune ;

Okabe, Nobuhiro ;

Okamoto, Sakurako ;

Okura, Yuki ;

Ono, Yoshiaki ;

Onodera, Masato ;

Onoue, Masafusa ;

Osato, Ken ;

Ouchi, Masami ;

Shibuya, Takatoshi .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2019, 71 (06)

[3]

Akins H. B., 2024, arXiv

[4] Two Massive, Compact, and Dust-obscured Candidate z ≃ 8 Galaxies Discovered by JWST [J].

Akins, Hollis B. ;

Casey, Caitlin M. ;

Allen, Natalie ;

Bagley, Micaela B. ;

Dickinson, Mark ;

Finkelstein, Steven L. ;

Franco, Maximilien ;

Harish, Santosh ;

Haro, Pablo Arrabal ;

Ilbert, Olivier ;

Kartaltepe, Jeyhan S. ;

Koekemoer, Anton M. ;

Liu, Daizhong ;

Long, Arianna S. ;

McCracken, Henry Joy ;

Paquereau, Louise ;

Papovich, Casey ;

Pirzkal, Nor ;

Rhodes, Jason ;

Robertson, Brant E. ;

Shuntov, Marko ;

Toft, Sune ;

Yang, Guang ;

Barro, Guillermo ;

Bisigello, Laura ;

Buat, Veronique ;

Champagne, Jaclyn B. ;

Cooper, Olivia ;

Costantin, Luca ;

de la Vega, Alexander ;

Drakos, Nicole E. ;

Faisst, Andreas ;

Fontana, Adriano ;

Fujimoto, Seiji ;

Gillman, Steven ;

Gomez-Guijarro, Carlos ;

Gozaliasl, Ghassem ;

Hathi, Nimish P. ;

Hayward, Christopher C. ;

Hirschmann, Michaela ;

Holwerda, Benne W. ;

Jin, Shuowen ;

Kocevski, Dale D. ;

Kokorev, Vasily ;

Lambrides, Erini ;

Lucas, Ray A. ;

Magdis, Georgios E. ;

Magnelli, Benjamin ;

McKinney, Jed ;

Mobasher, Bahram .

ASTROPHYSICAL JOURNAL, 2023, 956 (01)

[5] Extremely Red Galaxies at z=5-9 with MIRI and NIRSpec: Dusty Galaxies or Obscured Active Galactic Nuclei? [J].

Barro, Guillermo ;

Perez-Gonzalez, Pablo G. ;

Kocevski, Dale D. ;

McGrath, Elizabeth J. ;

Trump, Jonathan R. ;

Simons, Raymond C. ;

Somerville, Rachel S. ;

Yung, L. Y. Aaron ;

Haro, Pablo Arrabal ;

Akins, Hollis B. ;

Bagley, Michaela B. ;

Cleri, Nikko J. ;

Costantin, Luca ;

Davis, Kelcey ;

Dickinson, Mark ;

Finkelstein, Steve L. ;

Giavalisco, Mauro ;

Gomez-Guijarro, Carlos ;

Hathi, Nimish P. ;

Hirschmann, Michaela ;

Holwerda, Benne W. ;

Huertas-Company, Marc ;

Kartaltepe, Jeyhan S. ;

Koekemoer, Anton M. ;

Lucas, Ray A. ;

Papovich, Casey ;

Pirzkal, Nor ;

Seille, Lise-Marie ;

Tacchella, Sandro ;

Wuyts, Stijn ;

Wilkins, Stephen M. ;

de la Vega, Alexander ;

Yang, Guang ;

Zavala, Jorge A. .

ASTROPHYSICAL JOURNAL, 2024, 963 (02)

[6]

Barrufet L, 2024, Arxiv, DOI arXiv:2404.08052

[7] The most massive galaxies and black holes allowed by ΛCDM [J].

Behroozi, Peter ;

Silk, Joseph .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 477 (04) :5382-5387

[8] ON THE LACK OF EVOLUTION IN GALAXY STAR FORMATION EFFICIENCY [J].

Behroozi, Peter S. ;

Wechsler, Risa H. ;

Conroy, Charlie .

ASTROPHYSICAL JOURNAL LETTERS, 2013, 762 (02)

[9] A COMPREHENSIVE ANALYSIS OF UNCERTAINTIES AFFECTING THE STELLAR MASS-HALO MASS RELATION FOR 0 < z < 4 [J].

Behroozi, Peter S. ;

Conroy, Charlie ;

Wechsler, Risa H. .

ASTROPHYSICAL JOURNAL, 2010, 717 (01) :379-403

[10]

Bertin E, 2011, ASTR SOC P, V442, P435

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