Results 31 to 40 of about 71,444 (299)

Detection of CO and Dust Emission in Near-Infrared Spectra of SN 1998S [PDF]

open access: yes, 1999
Near-infrared spectra (0.95 -- 2.4 micron) of the peculiar Type IIn supernova 1998S in NGC 3877 from 95 to 355 days after maximum light are presented. K-band data taken at days 95 and 225 show the presence of the first overtone of CO emission near 2.3 ...
Bode M. F.   +21 more
core   +3 more sources

A Tale of Three Galaxies: Anomalous Dust Properties in IRASF10398+1455, IRASF21013-0739 and SDSSJ0808+3948

open access: yes, 2014
On a galactic scale the 9.7um silicate emission is usually only seen in type 1 active galactic nuclei (AGNs). They usually also display a flat emission continuum at ~5--8um and the absence of polycyclic aromatic hydrocarbon (PAH) emission bands.
Hao, Lei, Li, Aigen, Xie, Yanxia
core   +1 more source

Bolocam Survey for 1.1 mm Dust Continuum Emission in the c2d Legacy Clouds. I. Perseus [PDF]

open access: yesThe Astrophysical Journal, 2006
We have completed a 1.1 mm continuum survey of 7.5 sq deg of the Perseus Molecular Cloud using Bolocam at the Caltech Submillimeter Observatory. This represents the largest millimeter or submillimeter continuum map of Perseus to date. Our map covers more than 30,000 31" (FWHM) resolution elements to a 1 sigma RMS of 15 mJy/beam.
Enoch, M. L.   +16 more
openaire   +2 more sources

The complex morphology of the young disk MWC 758: Spirals and dust clumps around a large cavity

open access: yes, 2018
We present Atacama Large Millimeter Array (ALMA) observations at an angular resolution of 0.1-0.2" of the disk surrounding the young Herbig Ae star MWC 758. The data consist of images of the dust continuum emission recorded at 0.88 millimeter, as well as
Benisty, M.   +9 more
core   +3 more sources

A Tale of Three Galaxies: Deciphering the Infrared Emission of the Spectroscopically Anomalous Galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948

open access: yes, 2015
The \textit{Spitzer}/Infrared Spectrograph spectra of three spectroscopically anomalous galaxies (IRAS~F10398+1455, IRAS~F21013-0739 and SDSS~J0808+3948) are modeled in terms of a mixture of warm and cold silicate dust, and warm and cold carbon dust ...
Hao, Lei   +3 more
core   +1 more source

Millimeter dust continuum emission revealing the true mass of giant molecular clouds in the Small Magellanic Cloud [PDF]

open access: yesAstronomy & Astrophysics, 2007
CO observations have been so far the best way to trace molecular gas in external galaxies, but at low metallicity the gas mass deduced could be largely underestimated. At present, the kinematic information of CO data cubes are used to estimate virial masses and trace the total mass of the molecular clouds. Millimeter dust emission can also be used as a
Bot, Caroline   +3 more
openaire   +2 more sources

Bayesian analysis of the molecular emission and dust continuum of protoplanetary disks

open access: yesAstronomy & Astrophysics
Context. The MIRI instrument on board the James Webb Space Telescope probes the chemistry and dust mineralogy of the inner regions of protoplanetary disks. The observed spectra are unprecedented in their detail and reveal a rich chemistry with strong diversity between objects.
T. Kaeufer   +4 more
openaire   +2 more sources

Shock-Wave Heating Model for Chondrule Formation: Prevention of Isotopic Fractionation [PDF]

open access: yes, 2006
Chondrules are considered to have much information on dust particles and processes in the solar nebula. It is naturally expected that protoplanetary disks observed in present star forming regions have similar dust particles and processes, so study of ...
Blandford R. D.   +9 more
core   +3 more sources

ATCA and Spitzer Observations of the Binary Protostellar Systems CG30 and BHR71

open access: yes, 2008
We present interferometric observations with resolution of ~3 arcsecs of the isolated, low-mass protostellar double cores CG30 and BHR71 in the N2$H+(1-0) line and at 3mm dust continuum, using the Australian Telescope Compact Array (ATCA).
Henning Th.   +10 more
core   +1 more source

Testing the Evolutionary Sequence of High Mass Protostars with CARMA [PDF]

open access: yes, 2009
We present 1" resolution CARMA observations of the 3mm continuum and 95 GHz methanol masers toward 14 candidate high mass protostellar objects (HMPOs). Dust continuum emission is detected toward seven HMPOs, and methanol masers toward 5 sources.
Altenhoff   +36 more
core   +2 more sources

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