The Astrophysical Journal (Jan 2024)
A SPectroscopic Survey of Biased Halos In the Reionization Era (ASPIRE): Broad-line AGN at z = 4−5 Revealed by JWST/NIRCam WFSS
- Xiaojing Lin,
- Feige Wang,
- Xiaohui Fan,
- Zheng Cai,
- Jaclyn B. Champagne,
- Fengwu Sun,
- Marta Volonteri,
- Jinyi Yang,
- Joseph F. Hennawi,
- Eduardo Bañados,
- Aaron Barth,
- Anna-Christina Eilers,
- Emanuele Paolo Farina,
- Weizhe Liu,
- Xiangyu Jin,
- Hyunsung D. Jun,
- Alessandro Lupi,
- Koki Kakiichi,
- Chiara Mazzucchelli,
- Masafusa Onoue,
- Zhiwei Pan,
- Elia Pizzati,
- Sofía Rojas-Ruiz,
- Jan-Torge Schindler,
- Benny Trakhtenbrot,
- Yue Shen,
- Maxime Trebitsch,
- Ming-Yang Zhuang,
- Ryan Endsley,
- Romain A. Meyer,
- Zihao Li,
- Mingyu Li,
- Maria Pudoka,
- Wei Leong Tee,
- Yunjing Wu,
- Haowen Zhang
Affiliations
- Xiaojing Lin
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]; Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Feige Wang
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Xiaohui Fan
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Zheng Cai
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Jaclyn B. Champagne
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Fengwu Sun
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA
- Marta Volonteri
- ORCiD
- Institut d’Astrophysique de Paris, Sorbonne Université , CNRS, UMR 7095, 98 bis bd Arago, 75014 Paris, France
- Jinyi Yang
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Joseph F. Hennawi
- ORCiD
- Department of Physics, Broida Hall, University of California, Santa Barbara , Santa Barbara, CA 93106-9530, USA; Leiden Observatory, Leiden University , P.O. Box 9513, NL-2300 RA Leiden, The Netherlands
- Eduardo Bañados
- ORCiD
- Max Planck Institut für Astronomie , Königstuhl 17, D-69117, Heidelberg, Germany
- Aaron Barth
- ORCiD
- Department of Physics and Astronomy, 4129 Frederick Reines Hall, University of California , Irvine, CA 92697-4575, USA
- Anna-Christina Eilers
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Emanuele Paolo Farina
- ORCiD
- Gemini Observatory , NSF’s NOIRLab, 670 North A’ohoku Place, Hilo, HI 96720, USA
- Weizhe Liu
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Xiangyu Jin
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Hyunsung D. Jun
- ORCiD
- Department of Physics, Northwestern College , 101 7th St. SW, Orange City, IA 51041, USA
- Alessandro Lupi
- ORCiD
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria , via Valleggio 11, I-22100, Como, Italy; INFN, Sezione di Milano-Bicocca , Piazza della Scienza 3, I-20126 Milano, Italy; Dipartimento di Fisica ”G. Occhialini,” Università degli Studi di Milano-Bicocca , Piazza della Scienza 3, I-20126 Milano, Italy
- Koki Kakiichi
- ORCiD
- Cosmic Dawn Center (DAWN) , Denmark; Niels Bohr Institute, University of Copenhagen , Jagtvej 128, 2200 Copenhagen N, Denmark
- Chiara Mazzucchelli
- ORCiD
- Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias, Universidad Diego Portales , Avenida Ejercito Libertador 441, Santiago, Chile
- Masafusa Onoue
- ORCiD
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo Institutes for Advanced Study , The University of Tokyo, Kashiwa, Chiba 277-8583, Japan; Center for Data-Driven Discovery, Kavli IPMU (WPI), UTIAS, The University of Tokyo , Kashiwa, Chiba 277-8583, Japan; Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People's Republic of China
- Zhiwei Pan
- ORCiD
- Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People's Republic of China; Department of Astronomy, School of Physics, Peking University , Beijing 100871, People's Republic of China
- Elia Pizzati
- Leiden Observatory, Leiden University , P.O. Box 9513, NL-2300 RA Leiden, The Netherlands
- Sofía Rojas-Ruiz
- ORCiD
- Department of Physics and Astronomy, University of California , Los Angeles, 430 Portola Plaza, Los Angeles, CA 90095, USA
- Jan-Torge Schindler
- ORCiD
- Hamburger Sternwarte, Universität Hamburg , Gojenbergsweg 112, D-21029 Hamburg, Germany
- Benny Trakhtenbrot
- ORCiD
- School of Physics and Astronomy, Tel Aviv University , Tel Aviv 69978, Israel
- Yue Shen
- ORCiD
- Department of Astronomy, University of Illinois at Urbana-Champaign , Urbana, IL 61801, USA; National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign , Urbana, IL 61801, USA
- Maxime Trebitsch
- ORCiD
- Kapteyn Astronomical Institute, University of Groningen , 9700 AV Groningen, The Netherlands
- Ming-Yang Zhuang
- ORCiD
- Department of Astronomy, University of Illinois at Urbana-Champaign , Urbana, IL 61801, USA
- Ryan Endsley
- Department of Astronomy, University of Texas , Austin, TX 78712, USA
- Romain A. Meyer
- ORCiD
- Max Planck Institut für Astronomie , Königstuhl 17, D-69117, Heidelberg, Germany
- Zihao Li
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Mingyu Li
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Maria Pudoka
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Wei Leong Tee
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- Yunjing Wu
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Haowen Zhang
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Ave., Tucson, AZ 85721, USA
- DOI
- https://doi.org/10.3847/1538-4357/ad6565
- Journal volume & issue
-
Vol. 974,
no. 1
p. 147
Abstract
Low-luminosity active galactic nuclei (AGNs) with low-mass black holes (BHs) in the early universe are fundamental to understanding the BH growth and their coevolution with the host galaxies. Utilizing JWST NIRCam Wide Field Slitless Spectroscopy, we perform a systematic search for broad-line H α emitters (BHAEs) at z ≈ 4–5 in 25 fields of the A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE) project, covering a total area of 275 arcmin ^2 . We identify 16 BHAEs with FWHM of the broad components spanning from ∼1000 to 3000 km s ^−1 . Assuming that the broad line widths arise as a result of Doppler broadening around BHs, the implied BH masses range from 10 ^7 to 10 ^8 M _⊙ , with broad H α -converted bolometric luminosities of 10 ^44.5 –10 ^45.5 erg s ^−1 and Eddington ratios of 0.07–0.47. The spatially extended structure of the F200W stacked image may trace the stellar light from the host galaxies. The H α luminosity function indicates an increasing AGN fraction toward the higher H α luminosities. We find possible evidence for clustering of BHAEs: two sources are at the same redshift with a projected separation of 519 kpc; one BHAE appears as a composite system residing in an overdense region with three close companion H α emitters. Three BHAEs exhibit blueshifted absorption troughs indicative of the presence of high column density gas. We find that the broad-line-selected and photometrically selected BHAE samples exhibit different distributions in the optical continuum slopes, which can be attributed to their different selection methods. The ASPIRE broad-line H α sample provides a good database for future studies of faint AGN populations at high redshift.
Keywords
