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Related papers: Compact mid-IR sources east of galactic center sou…

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We report on our search for distant clusters of galaxies based on optical and X-ray follow up observations of X-ray candidates from the SHARC survey. Based on the assumption that the absence of bright optical or radio counterparts to…

Astrophysics · Physics 2009-11-13 C. Adami , M. P. Ulmer , F. Durret , G. Covone , E. Cypriano

Our present understanding of the extragalactic source counts and background radiation at infrared and sub-mm wavelengths is reviewed. Available count data are used to constrain evolutionary models of galaxies and Active Nuclei. The CIRB, on…

We present 5 to 15 micron Spitzer Infrared Spectrograph (IRS) low resolution spectral data of a candidate debris disk around an M4.5 star identified as a likely member of the ~40 Myr old cluster NGC2547. The IRS spectrum shows a silicate…

Solar and Stellar Astrophysics · Physics 2014-11-18 Paula S. Teixeira , Charles J. Lada , Kenneth Wood , Thomas P. Robitaille , Kevin L. Luhman

Three very massive clusters are known to reside in the Galactic Center region, the Arches cluster, the Quintuplet cluster and the Central parsec cluster. We obtained spectroscopic observations of the Quintuplet cluster with the Integral…

Astrophysics · Physics 2009-11-13 A. Liermann , W. -R. Hamann , L. M. Oskinova

We study the relationship between the mid-IR (5-18 $\mu$m) emission of late-type galaxies and various other star formation tracers in order to investigate the nature of the dust heating sources in this spectral domain. The analysis is…

Astrophysics · Physics 2009-11-10 A. Boselli , J. Lequeux , G. Gavazzi

Context: The Red MSX Source (RMS) survey is a multi-wavelength campaign of follow-up observations of a colour-selected sample of candidate massive young stellar objects (MYSOs) in the galactic plane. This survey is returning the largest…

Astrophysics of Galaxies · Physics 2015-05-14 J. C. Mottram , M. G. Hoare , S. L. Lumsden , R. D. Oudmaijer , J. S. Urquhart , M. R. Meade , T. J. T. Moore , J. J. Stead

We investigate the nature of 24micron sources in M33 which have weak or no associated Halpha emission. Both bright evolved stars and embedded star forming regions are visible as compact infrared sources in the 8 and 24micron maps of M33 and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Edvige Corbelli , Carlo Giovanardi , Francesco Palla , Simon Verley

Statistical studies indicate that the 271 point sources of high-energy gamma rays belong to two groups: a Galactic population and an isotropic extragalactic population. Many unidentified extragalactic sources are certainly blazars, and it…

Astrophysics · Physics 2009-11-10 P. M. Wallace , S. D. Bloom , M. S. Lewis

Analysis of 18-120 keV images of the Sagittarius Arm Tangent region (SATR) obtained by IBIS telescope onboard INTEGTRAL observatory during the spring of 2003 is performed. In the 18-60 keV energy range, 28 sources have been detected with a…

The Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) has been used to observe 78 of the IRAS point sources identified by Bronfman et al. (1996) as likely ultracompact HII regions. Results for the CO(4-3) line at 461.041GHz…

Astrophysics · Physics 2007-05-23 Wilfred Walsh

This paper is devoted to determining the nature of the hard X-ray source IGR J17463-2854 located toward the Galactic bulge. Using data from the INTEGRAL and Chandra X-ray observatories, we show that five point X-ray sources with…

High Energy Astrophysical Phenomena · Physics 2015-08-20 D. I. Karasev , S. S. Tsygankov , A. A. Lutovinov

We present deep and high-resolution (FWHM ~ 0.4 arcsec) near-infrared (NIR) imaging observations of the NGC 7538 IRS 1-3 region (in JHK bands), and IRS 9 region (in HK bands) using the 8.2m Subaru telescope. The NIR analysis is complemented…

Astrophysics of Galaxies · Physics 2015-06-22 K. K. Mallick , D. K. Ojha , M. Tamura , A. K. Pandey , S. Dib , S. K. Ghosh , K. Sunada , I. Zinchenko , L. Pirogov , M. Tsujimoto

We present Spitzer Infrared Spectrograph (IRS) observations of eleven intermediate polars (IPs). Spectra covering the wavelength range from 5.2 to 14 $\mu$m are presented for all eleven objects, and longer wavelength spectra are presented…

We continue the study begun in Karasev et al. (2018) and present the results of our optical identifications of four hard X-ray sources from the INTEGRAL sky surveys. Having first improved the positions of these objects in the sky with the…

The IRAS source 03256+3055 in the NGC 1333 star forming region is associated with extended sub-millimeter emission of complex morphology, showing multiple clumps. One of these is found to coincide with the driving source of a bipolar jet of…

Astrophysics · Physics 2009-11-10 Klaus W. Hodapp , John Bally , Jochen Eisloeffel , Christopher J. Davis

L'-band (lambda=3.8 microns) and M'-band (lambda=4.8 microns) observations of the Galactic Center region, performed in 2003 at VLT (ESO) with the adaptive optics imager NACO, have lead to the detection of an infrared counterpart of the…

Astrophysics · Physics 2016-08-16 Y. Clénet , D. Rouan , D. Gratadour , F. Lacombe , E. Gendron , R. Genzel , T. Ott , R. Schödel , P. Léna

Many sources in the fourth INTEGRAL/IBIS catalogue are still unidentified, since they lack an optical counterpart. An important tool that can help in identifying/classifying these sources is the cross-correlation with radio catalogues,…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Manuela Molina , Raffaella Landi , Loredana Bassani , Angela Malizia , John B. Stephen , Angela Bazzano , Antony J. Bird , Neil Gehrels

We have imaged the entire Small Magellanic Cloud (SMC), one of the two nearest star-forming dwarf galaxies, in all seven IRAC and MIPS bands. The low mass and low metallicity (1/6 solar) of the SMC make it the best local analog for…

We present high S/N, moderate resolution near-infrared spectra, as well as 10 micron imaging, for the brightest members of the central stellar cluster in the W40 HII region, obtained using the SpeX and MIRSI instruments at NASA's Infrared…

Astrophysics of Galaxies · Physics 2015-06-11 R. Y. Shuping , William D. Vacca , Marc Kassis , Ka Chun Yu

The IRAC shallow survey covers 8.5 square degrees in the NOAO Deep Wide-Field Survey in Bootes with 3 or more 30 second exposures per position. An overview of the survey design, reduction, calibration, star-galaxy separation, and initial…