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Galaxy Zoo: Dust and molecular gas in early-type galaxies with prominent dust lanes
galaxies: ISM - galaxies: elliptical and lenticular cD - galaxies: peculiar galaxies: interactions - galaxies: formation - galaxies: evolution
2011/10/17
We study dust and associated molecular gas in 352 nearby early-type galaxies (ETGs) with prominent dust lanes. 65% of these 'dusty ETGs' (D-ETGs) are morphologically disturbed, suggesting a merger ori...
H_2^{16}O and H_2^{18}O Maser Emission from Gas-Dust Clouds
astrophysical masers heavy-oxygen water star-forming regions active galactic nuclei
2011/10/11
The collisional pumping of H_2^{16}O and H_2^{18}O masers in hot dense gas-dust clouds has been simulated numerically. New data on the rate coefficients for collisional transitions from Faure et al. (...
Genesis and evolution of dust in galaxies in the early Universe I. Modeling dust evolution in starburst galaxies
galaxies high-redshift – galaxies starburst – galaxies evolution – ISM evolution – quasars general – stars massive
2010/11/16
Aims. The aim is to elucidate the astrophysical conditions required for generating large amounts of dust in massive starburst galaxies at high redshift.
Hot-Dust-Poor Quasars in Mid-Infrared and Optically Selected Samples
galaxies evolution quasars general surveys
2010/11/9
We show that the Hot-Dust-Poor (HDP) quasars found in the X-ray selected XMM-COSMOS type
1 AGN sample are just as common in two samples selected at optical/infrared wavelengthes: the
Richards et al....
The Bolocam Galactic Plane Survey IV: 1.1 and 0.35 mm Dust Continuum Emission in the Galactic Center Region
Galactic Plane Survey Galactic Center Region
2010/11/10
The Bolocam Galactic Plane Survey (BGPS) data for a six square degree region of the Galactic plane containing the Galactic center is analyzed and com-pared to infrared and radio continuum data. The BG...
Asymmetric Heating of the HR 4796A Dust Ring Due to Pericenter Glow
circumstellar matter planetary systems Stars individual HR 4796A, Infrared planetary systems
2010/11/11
We have obtained new resolved images of the well-studied HR 4796A dust ring at 18 and 25 μm with the 8-meter Gemini telescopes.These images confirm the previously observed spatial extent seen in mid-I...
The Origin of Dust in the Early Universe: Probing the Star Formation History of Galaxies by their Dust Content
galaxies evolution high-redshift starburst - quasars individ-ual
2010/11/11
Two distinct scenarios for the origin of the ∼ 4 × 108 M⊙ of dust observed in the high-redshift (z = 6.4) quasar J1148+5251 have been proposed. The first assumes that this galaxy is much younger...