Results 71 to 80 of about 36,963 (210)

NICMOS Imaging of Infrared-Luminous Galaxies

The Astronomical Journal, 2000
We present near-infrared images obtained with the HST NICMOS camera for a sample of 9 luminous (LIGs: L_IR (8-1000 microns) >~ 10^11 L_sun) and 15 ultra-luminous (ULIGS: L_IR >~ 10^12 L_sun) infrared galaxies.
Scoville, N. Z., Evans, A. S, Thompson, R., Rieke, M., Hines, D. C., Low, F. J., Dinshaw, N., Surace, J. A., Armus, L.   +8 more
openaire   +2 more sources

Mid-Infrared Spectroscopy of Infrared-Luminous Galaxies with Subarcsecond Resolution [PDF]

The Astronomical Journal, 2002
21 pages, 4 tables, 4 figures, Accepted for publication in ...
Soifer, B. T., Neugebauer, G., Matthews, K., Egami, E., Weinberger, A. J.   +4 more
openaire   +3 more sources

ASCA spectroscopy of the luminous infrared galaxy NGC 6240: X-ray emission from a starburst and a buried active nucleus [PDF]

, 1998
We present an X-ray spectroscopic study of the prototype far-infrared galaxy NGC 6240 from ASCA. The soft X-ray spectrum (below 2 keV) shows clear signatures of thermal emission well described by a multitemperature optically thin plasma, which probably ...
K. Iwasawa, A. Comastri
semanticscholar   +1 more source

Disentangling Accretion Disk and Dust Emissions in the Infrared Spectrum of Type 1 AGN

Frontiers in Astronomy and Space Sciences, 2017
We use a semi-empirical model to reproduce the 0.1–10 μm spectral energy distribution (SED) of a sample of 85 luminous quasars. In the model, the continuum emission from the accretion disk as well as the nebular lines are represented by a single ...
Antonio Hernán-Caballero, Antonio Hernán-Caballero, Evanthia Hatziminaoglou, Almudena Alonso-Herrero, Silvia Mateos   +4 more
doaj   +1 more source

The Luminosity–Metallicity relation of distant luminous infrared galaxies [PDF]

Astronomy & Astrophysics, 2004
20 pages, 9 PS figures, Accepted for publication in A& ...
Liang, Yan-Chun, Hammer, François, Flores, Hector, Elbaz, David, Marcillac, D., Cesarsky, Catherine J.   +5 more
openaire   +4 more sources

THE ROLE OF STARBURST–ACTIVE GALACTIC NUCLEUS COMPOSITES IN LUMINOUS INFRARED GALAXY MERGERS: INSIGHTS FROM THE NEW OPTICAL CLASSIFICATION SCHEME [PDF]

, 2009
We investigate the fraction of starbursts, starburst–active galactic nucleus (AGN) composites, Seyferts, and low-ionization narrow emission-line region galaxies (LINERs) as a function of infrared luminosity (LIR) and merger progress for ∼500 infrared (IR)
T. Yuan, L. Kewley, D. Sanders
semanticscholar   +1 more source

PEARLS: Discovery of Point-source Features within Galaxies in the North Ecliptic Pole Time Domain Field

The Astrophysical Journal
The first public 0.9–4.4 μ m NIRCam images of the North Ecliptic Pole Time Domain Field uncovered galaxies displaying point-source features in their cores as seen in the longer-wavelength filters. We visually identified a sample of 66 galaxies (∼1 galaxy
Rafael Ortiz III, Rogier A. Windhorst, Seth H. Cohen, Steven P. Willner, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Michael J. Rutkowski, Brent M. Smith, Jake Summers, Cheng Cheng, Dan Coe, Christopher J. Conselice, Jose M. Diego, Simon P. Driver, Jordan C. J. D’Silva, Brenda L. Frye, Hansung B. Gim, Norman A. Grogin, Heidi B. Hammel, Nimish P. Hathi, Benne W. Holwerda, Minhee Hyun, Myungshin Im, William C. Keel, Anton M. Koekemoer, Juno Li, Madeline A. Marshall, Tyler J. McCabe, Noah J. McLeod, Stefanie N. Milam, Rosalia O’Brien, Nor Pirzkal, Aaron S. G. Robotham, Russell E. Ryan Jr., Christopher N. A. Willmer, Haojing Yan, Min S. Yun, Adi Zitrin   +38 more
doaj   +1 more source

Chandra observations of the luminous infrared galaxy NGC 3256 [PDF]

, 2001
We present a detailed analysis of high-resolution Chandra observations of the merger system NGC 3256, the most infrared-luminous galaxy in the nearby universe.
P.Lira, M.Ward, A.Zezas, A.Alonso-Herrero, S.Ueno Leicester, U. O. Chile, Cfa, Hertfordshire, S. Observatory, Nasda   +9 more
semanticscholar   +1 more source

Discovery of a Very Highly Extinguished Supernova in a Luminous Infrared Galaxy [PDF]

, 2008
We report the discovery of a confirmed supernova (SN) and a supernova candidate in near-infrared images from the ALTAIR/NIRI adaptive optics system on the Gemini-North Telescope and NICMOS on the Hubble Space Telescope. The Gemini images were obtained as
E. Kankare, S. Mattila, S. Ryder, M. Pérez-Torres, A. Alberdi, C. Romero-Cañizales, T. Díaz-Santos, P. Väisänen, A. Efstathiou, A. Alonso-Herrero, L. Colina, J. Kotilainen   +11 more
semanticscholar   +1 more source

A Luminous and Hot Infrared through X-Ray Transient at a 5 kpc Offset from a Dwarf Galaxy

The Astrophysical Journal
We are searching for hot, constant-color, offset optical flares in the Zwicky Transient Facility data stream that are >10″ from any galaxy in public imaging data from the PanSTARRS survey. Here, we present the first discovery from this search: AT 2024puz,
Jean J. Somalwar, Vikram Ravi, Raffaella Margutti, Ryan Chornock, Priyamvada Natarajan, Wenbin Lu, Charlotte Angus, Matthew J. Graham, Erica Hammerstein, Edward Nathan, Matt Nicholl, Kritti Sharma, Robert Stein, Frank Verdi, Yuhan Yao, Eric C. Bellm, Tracy X. Chen, Michael W. Coughlin, David Hale, Mansi M. Kasliwal, Russ R. Laher, Reed Riddle, Jesper Sollerman   +22 more
doaj   +1 more source