Results 121 to 130 of about 5,389 (174)

A z ≃ 0.4 Galaxy Reflecting the High-redshift Little Red Dots: An Extended Starburst with an Overmassive Black Hole

The Astrophysical Journal
One of the most remarkable discoveries of JWST is a population of compact, red sources at z > 4, commonly referred to as Little Red Dots (LRDs). Spectroscopic identifications reported that most LRDs are active galactic nuclei, which are preferentially ...
Xiaoyang Chen, Kohei Ichikawa, Masayuki Akiyama, Kohei Inayoshi, Akio K. Inoue, Masafusa Onoue, Yoshiki Toba, Jorge Zavala, Tom Bakx, Toshihiro Kawaguchi, Kianhong Lee, Naoki Matsumoto, Bovornpratch Vijarnwannaluk   +12 more
doaj   +1 more source

Systematic Study of the Inner Structure of Molecular Tori in Nearby U/LIRGs Using Velocity Decomposition of CO Rovibrational Absorption Lines

The Astrophysical Journal
Determining the inner structure of the molecular torus around an active galactic nucleus is essential for understanding its formation mechanism. However, spatially resolving the torus is difficult because of its small size.
Shusuke Onishi, Takao Nakagawa, Shunsuke Baba, Kosei Matsumoto, Naoki Isobe, Mai Shirahata, Hiroshi Terada, Tomonori Usuda, Shinki Oyabu   +8 more
doaj   +1 more source

The Magnetic Fields of the Dusty Nuclei and Molecular Outflows of Arp 220

The Astrophysical Journal Letters
Galaxy mergers trigger starburst activity and galactic outflows that enrich the circumgalactic medium (CGM), profoundly impacting galaxy evolution. These phenomena are intrinsically linked to the physical conditions of the medium, which is permeated by ...
Enrique Lopez-Rodriguez, Josep M. Girart, Miguel Pérez-Torres, Mar Mezcua, Gemma Busquet, Rubén Herrero-Illana, Antxon Alberdi, José M. Torrelles   +7 more
doaj   +1 more source

Disclosing Submillimeter Galaxy Formation: Mergers or Secular Evolution?

The Astrophysical Journal
We analyze the morphology of 125 submillimeter galaxies (SMGs) in the PRIMER-COSMOS field using double Sérsic modeling on JWST NIRCam images across six bands (F150W, F200W, F277W, F356W, F410M, and F444W), with SMGs being classified by the bulge Sérsic ...
Siu-Wang Chan, Yiping Ao, Qing-hua Tan
doaj   +1 more source

Probing Heavily Obscured Active Galactic Nuclei in Major Galaxy Mergers Using the Millimeter–X-Ray Correlation

The Astrophysical Journal Letters
The study of heavily obscured supermassive black hole (SMBH) growth in late-stage galaxy mergers is challenging: column densities N _H > 10 ^24 cm ^−2 can block most nuclear emission, leaving significant gaps in the SMBH growth census.
Macarena Droguett-Callejas, Ezequiel Treister, Loreto Barcos-Muñoz, Makoto Johnstone, Franz E. Bauer, Taiki Kawamuro, Núria Torres-Albà, Claudio Ricci, Michael Koss, Yiqing Song, Alessandro Peca, Aaron Evans, Jorge González   +12 more
doaj   +1 more source

Identification of three new ultraluminous X-ray sources in NGC 4631 and NGC 1097: Evidence for stellar-mass black holes

Astronomy & Astrophysics
Context. Recent observations of galaxies continue to reveal new ultraluminous X-ray sources (ULXs), thereby increasing their known population. This growing sample provides improved statistics that are essential for advancing our understanding of ULX ...
Allak Sinan, Akyuz Aysun, Aladag Yasemin, Ducci Lorenzo, Santangelo Andrea   +4 more
doaj   +1 more source

Global Hot Gas Excess in (Ultra)Luminous Infrared Galaxies: Replicating Galactic Nuclei Scaling Relations between Diffuse X-Ray Emission and Star Formation on Galaxy-wide Scales

The Astrophysical Journal
Hot ionized interstellar medium interlinks star formation and stellar feedback processes, redistributing energy, momentum, and material throughout galaxies.
Chunyi Zhang, Junfeng Wang
doaj   +1 more source

Celebrating 30 years of science from the James Clerk Maxwell Telescope. [PDF]

R Soc Open Sci, 2017
Robson I, Holland WS, Friberg P.
europepmc   +1 more source

A Large Molecular Gas Reservoir in the Protocluster SPT2349−56 at z = 4.3

The Astrophysical Journal Letters
We present Atacama Compact Array (ACA) Band-3 observations of the protocluster SPT2349−56, an extreme system hosting >10 ultraluminous infrared galaxies (ULIRGs; L _IR  ≳  10 ^12 L _⊙ ) in a 200 kpc diameter region at z  =  4.3, to study its integrated ...
Dazhi Zhou, Scott C. Chapman, Nikolaus Sulzenauer, Ryley Hill, Manuel Aravena, Pablo Araya-Araya, Jared Cathey, Daniel P. Marrone, Kedar A. Phadke, Cassie Reuter, Manuel Solimano, Justin S. Spilker, Joaquin D. Vieira, David Vizgan, George C. P. Wang, Axel Weiss   +15 more
doaj   +1 more source

Origins Space Telescope: predictions for far-IR spectroscopic surveys. [PDF]

Publ Astron Soc Aust, 2019
Bonato M, De Zotti G, Leisawitz D, Negrello M, Massardi M, Baronchelli I, Cai ZY, Bradford CM, Pope A, Murphy EJ, Armus L, Cooray A.   +11 more
europepmc   +1 more source