Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Weedman, Daniel"'
The sample of 379 extragalactic sources is presented that have mid-infrared, high resolution spectroscopy with the Spitzer Infrared Spectrograph (IRS) and also spectroscopy of the [CII] 158 um line with the Herschel Photodetector Array Camera and Spe
Externí odkaz:
http://arxiv.org/abs/1608.02277
Autor:
Weedman, Daniel, Sargsyan, Lusine
A population of quasars at z ~ 2 is determined based on dust luminosities vLv(7.8 um) that includes unobscured, partially obscured, and obscured quasars. Quasars are classified by the ratio vLv(0.25 um)/vLv(7.8 um) = UV/IR, assumed to measure obscura
Externí odkaz:
http://arxiv.org/abs/1606.09529
Publikováno v:
ApJ 790, 88 (2014)
Infrared luminosities vLv(7.8 um) arising from dust reradiation are determined for Sloan Digital Sky Survey (SDSS) quasars with 1.4 < z < 5 using detections at 22 um by the Wide-Field Infrared Survey Explorer. Infrared luminosity does not show a maxi
Externí odkaz:
http://arxiv.org/abs/1406.2002
Autor:
Sargsyan, Lusine, Samsonyan, Anahit, Lebouteiller, Vianney, Weedman, Daniel, Barry, Donald, Bernard-Salas, Jeronimo, Houck, James, Spoon, Henrik
A summary is presented for 130 galaxies observed with the Herschel PACS instrument to measure fluxes for the [CII] 158 um emission line. Sources cover a wide range of active galactic nucleus to starburst classifications, as derived from polycyclic ar
Externí odkaz:
http://arxiv.org/abs/1405.5759
Mid-infrared spectroscopic measurements from the Infrared Spectrometer on Spitzer (IRS) are given for 125 hard X-ray AGN (14-195 keV) from the Swift Burst Alert Telescope sample and for 32 AGN with black hole masses from reverberation mapping. The 9.
Externí odkaz:
http://arxiv.org/abs/1211.0683
Autor:
Sargsyan, Lusine, Weedman, Daniel, Lebouteiller, Vianney, Houck, James, Barry, Donald, Hovhannisyan, Ashot, Mickaelian, Areg
Publikováno v:
The Astrophysical Journal, Volume 730, Issue 1, article id. 19, 24 pp. 03/2011
We present spectroscopic results for all galaxies observed with the Spitzer Infrared Spectrograph (IRS) which also have total infrared fluxes f(ir) measured with the Infrared Astronomical Satellite (IRAS), also using AKARI photometry when available.
Externí odkaz:
http://arxiv.org/abs/1101.3876
Autor:
Houck, James R., Weedman, Daniel W.
We summarize observations with the Spitzer Infrared Spectrograph (IRS) of 571 starbursts (strong PAH emission features), 128 obscured AGN (strong silicate absorption), and 39 unobscured AGN (silicate emission). Sources range in luminosity from 10^{8}
Externí odkaz:
http://arxiv.org/abs/1005.0344
We present samples of starburst galaxies that represent the extremes discovered with infrared and ultraviolet observations, including 25 Markarian galaxies, 23 ultraviolet luminous galaxies discovered with GALEX, and the 50 starburst galaxies having
Externí odkaz:
http://arxiv.org/abs/1004.1551
Publikováno v:
Astrophys.J.701:1398-1414,2009
Star formation rates (SFR) are compared as determined from mid-infrared 7.7 um PAH luminosity [SFR(PAH)], from 1.4 GHz radio luminosity [SFR(radio)], and from far ultraviolet luminosity [SFR(UV)] for a sample of 287 starburst galaxies with z < 0.5 ha
Externí odkaz:
http://arxiv.org/abs/0906.3688
Autor:
Desai, Vandana, Soifer, B. T., Dey, Arjun, Floc'h, Emeric Le, Armus, Lee, Brand, Kate, Brown, Michael J. I., Brodwin, Mark, Jannuzi, Buell T., Houck, James R., Weedman, Daniel W., Ashby, Matthew L. N., Gonzalez, Anthony, Huang, Jiasheng, Smith, Howard A., Teplitz, Harry, Willner, Steve P., Melbourne, Jason
Publikováno v:
Astrophys.J.700:1190-1204,2009
Using the Infrared Spectrograph on board the Spitzer Space Telescope, we present low-resolution (64 < lambda / dlambda < 124), mid-infrared (20-38 micron) spectra of 23 high-redshift ULIRGs detected in the Bootes field of the NOAO Deep Wide-Field Sur
Externí odkaz:
http://arxiv.org/abs/0905.4274