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相关论文: Study of Dust and Ionized gas in Early-type Galaxi…

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We report optical extinction properties of dust for a sample of 26 early-type galaxies based on the analysis of their multicolour CCD observations. The wavelength dependence of dust extinction for these galaxies is determined and the…

天体物理学 · 物理学 2007-05-23 M. K. Patil , S. K. Pandey , D. K. Sahu , A. K. Kembhavi

The dust properties of all early-type galaxies imaged with the Planetary Camera of the HST in cycles I-III are examined. Dust is detected in 31 out of 64 galaxies, although the sample is biased against the detection of dust. From the…

天体物理学 · 物理学 2009-10-28 P. G. van Dokkum , M. Franx

We examine the dust properties of a nearby distance-limited sample of early type galaxies using the WFPC2 of the Hubble Space Telescope. Dust is detected in 29 out of 67 galaxies (43%), including 12 with small nuclear dusty disks. In a…

天体物理学 · 物理学 2009-11-06 H. D. Tran , Z. Tsvetanov , H. C. Ford , J. Davies , W. Jaffe , F. C. van den Bosch , A. Rest

We report the results of multicolour observations of 30 E/S0 galaxies with dust lanes. For each galaxy we obtained broad-band images and narrow-band images using interference filters isolating the H\alpha +[NII] emission lines to derive the…

宇宙学与河外天体物理 · 物理学 2015-05-19 Ido Finkelman , Noah Brosch , José G. Funes S. J. , Alexei Y. Kniazev , Petri Väisänen

We present an analysis of the dust optical properties at large scale, for the whole galactic anticenter hemisphere. We used the 2MASS Extended Source Catalog to obtain the total reddening on each galaxy line of sight and we compared this…

天体物理学 · 物理学 2009-10-19 L. Cambresy , T. H. Jarrett , C. A. Beichman

A sample of local galaxies for which far infrared and uv fluxes are available is used to estimate the characteristic dust extinction in galaxies and to test whether standard dust properties are plausible. Assuming galaxies can be…

天体物理学 · 物理学 2009-11-07 Michael Rowan-Robinson

Physical dust models are presented for 65 galaxies in the SINGS survey that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the total dust mass, (2) the fraction of the dust mass…

We studied the global characteristics of dust emission in a large sample of emission-line star-forming galaxies. The sample consists of two subsamples. One subsample (SDSS sample) includes ~4000 compact star-forming galaxies from the SDSS,…

星系天体物理 · 物理学 2018-05-29 Y. I. Izotov , N. G. Guseva , K. J. Fricke , E. Krugel , C. Henkel

The dust extinction curves toward individual sight lines in M33 are derived for the first time with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The observed photometric data are obtained from the LGGS, PS1…

星系天体物理 · 物理学 2022-06-29 Yuxi Wang , Jian Gao , Yi Ren , Bingqiu Chen

We describe far infrared observations of early-type galaxies selected from the ISO archive. This rather inhomogeneous sample includes 39 giant elliptical galaxies and 14 S0 (or later) galaxies. These galaxies were observed using a variety…

天体物理学 · 物理学 2016-08-30 Pasquale Temi , Fabrizio Brighenti , William G. Mathews , Jesse D. Bregman

We present and analyse high-quality SCUBA 850- and 450-um images of 14 local spiral galaxies, including the detection of dust well out into the extended disk in many cases. We use these data in conjunction with published far-IR flux…

天体物理学 · 物理学 2009-11-10 J. A. Stevens , M. Amure , W. K. Gear

We determine 37 differential extinctions in 23 gravitational lens galaxies over the range 0 < z_l < 1. Only 7 of the 23 systems have spectral differences consistent with no differential extinction. The median differential extinction for the…

天体物理学 · 物理学 2009-10-31 E. E. Falco , C. D. Impey , C. S. Kochanek , J. Lehar , B. A. McLeod , H-W. Rix , C. R. Keeton , J. A. Munoz , C. Y. Peng

We examine the dust distribution around a sample of 70,000 low redshift galaxy groups and clusters derived from the Sloan Digital Sky Survey. By correlating spectroscopically identified background quasars with the galaxy groups we obtain…

宇宙学与河外天体物理 · 物理学 2015-05-18 Sean L. McGee , Michael L. Balogh

We carried out 12CO(J=2-1) observations toward three star-forming galaxies on the main sequence at z~1.4 with the Nobeyama 45m radio telescope. These galaxies are detected with Spitzer/MIPS in 24 um, Herschel/SPIRE in 250 um and 350 um, and…

星系天体物理 · 物理学 2015-06-22 Akifumi Seko , Kouji Ohta , Bunyo Hatsukade , Kiyoto Yabe , Tomoe Takeuchi , Daisuke Iono

We present new data taken at 850 $\mu$m with SCUBA at the JCMT for a sample of 19 luminous infrared galaxies. Fourteen galaxies were detected. We have used these data, together with fluxes at 25, 60 and 100 $\mu$m from IRAS, to model the…

天体物理学 · 物理学 2009-10-31 U. Lisenfeld , K. G. Isaak , R. Hills

Spectroscopic observations of Halpha and Hbeta emission lines of 128 star-forming galaxies in the redshift range 0.75<z<1.5 are presented. These data were taken with slitless spectroscopy using the G102 and G141 grisms of the…

Fundamental properties of the extinction curve, like the slope in the rest-frame ultraviolet (UV) and the presence/absence of a broad absorption excess centred at 2175 A (the UV bump), are investigated for a sample of 108 massive,…

天体物理学 · 物理学 2009-11-13 S. Noll , D. Pierini , M. Pannella , S. Savaglio

We have conducted an archival Spitzer study of 38 early-type galaxies (ETGs) in order to determine the origin of the dust in approximately half of this population. Our sample galaxies generally have good wavelength coverage from 3.6um to…

宇宙学与河外天体物理 · 物理学 2015-06-15 Paul Martini , Daniel Dicken , Thaisa Storchi-Bergmann

We analyze the multi-wavelength photometric and spectroscopic data of 12 ultraluminous infrared galaxies (ULIRGs) at z ~ 1 and compare them with models of stars and dust in order to study the extinction law and star formation in young…

宇宙学与河外天体物理 · 物理学 2015-05-28 T. Shimizu , K. Kawara , H. Sameshima , N. Ienaka , T. Nozawa , T. Kozasa
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