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Related papers: Spitzer/IRS investigation of MIPSGAL 24 microns co…

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We present Spitzer/IRS low resolution observations of 11 compact circumstellar bubbles from the MIPSGAL 24 {\mu}m Galactic Plane Survey. We find that this set of MIPSGAL bubbles (MBs) is divided into two categories, and that this…

Astrophysics of Galaxies · Physics 2015-06-23 M. Nowak , N. Flagey , A. Noriega-Crespo , N. Billot , S. J. Carey , R. Paladini , S. D. Van Dyk

We present near-IR spectroscopic observations of the central sources in 17 circumstellar shells from a sample of more than 400 "bubbles" discovered in the Spitzer/MIPSGAL 24um survey of the Galactic plane and in the Cyg-X region. To…

Astrophysics of Galaxies · Physics 2015-06-19 Nicolas Flagey , Alberto Noriega-Crespo , Andreea O. Petric , Tom R. Geballe

We attempt to determine the nature of the bubbles observed by Spitzer in the Galactic plane, mainly to establish if possible their association with massive stars. We take advantage of the very simple morphology of these objects to search…

Astrophysics of Galaxies · Physics 2015-05-19 L. Deharveng , F. Schuller , L. D. Anderson , A. Zavagno , F. Wyrowski , K. M. Menten , L. Bronfman , L. Testi , C. M. Walmsley , M. Wienen

We report the radio observations of a sub-sample of the 428 galactic compact bubbles discovered at 24 $\mu$m with the MIPSGAL survey. Pervasive through the entire Galactic plane, these objects are thought to be different kinds of evolved…

We have obtained 24 {\mu}m imaging, profiles and fluxes for 224 planetary nebulae (PNe) lying within the limits of the Spitzer MIPSGAL survey. It is noted that most of the PNe having extended 24 {\mu}m emission also possess circular…

Astrophysics of Galaxies · Physics 2010-09-27 J. P. Phillips , R. A. Marquez-Lugo

We present a catalog of 416 extended, resolved, disk- and ring-like objects as detected in the MIPSGAL 24 micron survey of the Galactic plane. This catalog is the result of a search in the MIPSGAL image data for generally circularly…

Astrophysics of Galaxies · Physics 2015-05-18 D. R. Mizuno , K. E. Kraemer , N. Flagey , N. Billot , S. Shenoy , R. Paladini , E. Ryan , A. Noriega-Crespo , S. J. Carey , .

We use mid-infrared Spitzer spectroscopy and far-infrared Herschel photometry for a sample of twenty main sequence O9--B2 stars in the Small Magellanic Cloud (SMC) with strong 24 micron excesses to investigate the origin of the mid-IR…

In our Spitzer 24 \mu m survey of hot white dwarfs (WDs) and archival Spitzer study of pre-WDs, i.e., central stars of planetary nebulae (CSPNs), we found mid-IR excesses for -15 WDs/pre-WDs. These mid-IR excesses are indicative of the…

Earth and Planetary Astrophysics · Physics 2015-03-18 J. Bilíkovà , Y. -H. Chu , K. Su , R. A. Gruendl , T. Rauch

To study the distribution of star formation and dust emission within nearby galaxies, we measured five morphological parameters in the 3.6 and 24 micron wave bands for 65 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS) and 8…

[abridged] We present 52-93 micron spectra obtained with Spitzer in the MIPS-SED mode, of a representative sample of luminous compact far-IR sources in the LMC. These include carbon stars, OH/IR AGB stars, post-AGB objects and PNe,…

We have carried out mid-infrared spectroscopy of seven Galactic proto-planetary nebulae (PPNs) using the Spitzer Space Telescope. They were observed from 10-36 microns at relatively high spectral resolution, R~600. The sample was chosen…

Solar and Stellar Astrophysics · Physics 2011-02-11 Bruce J. Hrivnak , Kevin Volk , Sun Kwok

Approximately 20-30% of 1.4<z<2.5 galaxies with K<22 (Vega) detected with Spitzer MIPS at 24um show excess mid-IR emission relative to that expected based on the rates of star formation measured from other multiwavelength data.These…

Two types of dust disks around white dwarfs (WDs) have been reported: small dust disks around cool metal-rich WDs consisting of tidally disrupted asteroids, and a large dust disk around the hot central WD of the Helix planetary nebula (PN)…

We present a catalog of mid-infrared (MIR) spectra of 150 infrared (IR) luminous galaxies in the Spitzer extragalactic first look survey obtained with IRS on board Spitzer. The sample is selected to be brighter than ~0.9 mJy at 24 micron…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-05 Kalliopi M. Dasyra , Lin Yan , George Helou , Anna Sajina , Dario Fadda , Michel Zamojski , Lee Armus , Bruce Draine , David Frayer

We report spectra obtained with the Spitzer Space Telescope in the wavelength range between 14 microns and 35 microns of 19 nearby main-sequence stars with infrared excesses. The six stars with strong dust emission show no recognizable…

We present mid-infrared to optical properties of 22 representative irregular galaxies: 18 Im, 3 BCDs, and one Sm. The mid-IR is based on images from the Spitzer Space Telescope archives. The 3.6 and 4.5 micron bands and the UBVJHK images…

Astrophysics · Physics 2008-11-26 Deidre A. Hunter , Bruce G. Elmegreen , Emily Martin

We have analyzed a uniform sample of 16 evolved HII regions located in a 2 deg X 2 deg Galactic field centered at (l,b) = (30 deg, 0 deg) and observed as part of the Herschel Hi-GAL survey. The evolutionary stage of these HII regions was…

We investigate the density structure of the interstellar medium using new high-resolution maps of the 8 micron, 24 micron, and 70 micron surface brightness towards a molecular cloud in the Gum Nebula, made as part of the Spitzer Space…

We present observations of 10.6 square degrees of the Perseus molecular cloud at 24, 70, and 160 microns with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). The image mosaics show prominent, complex extended…

With the newly available SPIRE images at 250 and 500 micron from Herschel Space Observatory, we study quantitative correlations over a sub-kpc scale among three distinct emission components in the interstellar medium of the nearby spiral…

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