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High spatial resolution CO observations of mid-inclination (30-75{\deg}) protoplanetary disks offer an opportunity to study the vertical distribution of CO emission and temperature. The asymmetry of line emission relative to the disk major…

We present the statistical analysis of X-ray surface brightness and gas density fluctuations in cool cores of ten, nearby and bright galaxy clusters that have deep Chandra observations and show observational indications of radio-mechanical…

High Energy Astrophysical Phenomena · Physics 2018-10-10 I. Zhuravleva , S. W. Allen , A. B. Mantz , N. Werner

We have detected four Giant Molecular cloud Associations (GMAs) (sizes < 6.6'' ~ 430 pc) in the western and eastern region of the polar ring in NGC2685 (the Helix galaxy) using the Owens Valley Radio Observatory (OVRO) millimeter…

Astrophysics · Physics 2009-11-07 E. Schinnerer , N. Z. Scoville

We present Far Ultraviolet Spectroscopic Explorer and Hubble Space Telescope observations of high, intermediate, and low ion absorption in high-velocity cloud Complex C along the lines of sight toward five active galaxies. Our purpose is to…

We present the results of interferometric observations of the cool core of Abell 1795 at CO(1-0) using the Combined Array for Research in Millimeter-Wave Astronomy. In agreement with previous work, we detect a significant amount of cold…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Michael McDonald , Lisa H. Wei , Sylvain Veilleux

We present large-scale submm observations towards the Sgr A Complex covering ~300 arcmin2. These data were obtained in the frame of the HEXGAL Program with the Herschel-HIFI satellite and are complemented with submm observations obtained…

Astrophysics of Galaxies · Physics 2016-06-15 P. García , R. Simon , J. Stutzki , R. Güsten , M. A. Requena-Torres , R. Higgins

We present the first detection of hydrogen chlorine in a protostellar shock, by observing the fundamental transition at 626 GHz with the Herschel HIFI spectrometer. We detected two of the three hyperfine lines, from which we derived a line…

Astrophysics of Galaxies · Physics 2015-05-30 C. Codella , C. Ceccarelli , S. Bottinelli , M. Salez , S. Viti , B. Lefloch , S. Cabrit , E. Caux , A. Faure , M. Vasta , L. Wiesenfeld

Column densities for H I, Al III, Si IV, C IV, and O VI toward 109 stars and 30 extragalactic objects have been assembled to study the extensions of these species away from the Galactic plane into the Galactic halo. H I and Al III mostly…

Astrophysics of Galaxies · Physics 2015-05-13 Blair D. Savage , Bart Wakker

I review recent results from our deep ROSAT and Chandra observations of two galaxies, M101 and NGC 4631, in fields of exceptionally low Galactic extinction. Large amounts of X-ray-emitting gas are detected in these galaxies. Such gas is…

Astrophysics · Physics 2007-05-23 Q. Daniel Wang

We present a study of the three-dimensional structure of the molecular clouds in the Galactic Centre (GC) using CO emission and OH absorption lines. Two CO isotopologue lines, $^{12}$CO ($J$=1$\rightarrow$0) and $^{13}$CO…

We present observations of the stretching mode of 13CO2 ice along 13 lines of sight in the Galaxy, using the Short Wavelength Spectrometer on board of the Infrared Space Observatory. Remarkable variations are seen in the absorption band…

We present XMM, Chandra and VLA observations of the USGC S152 group and its central elliptical NGC 3411. Imaging of the group X-ray halo suggests it is relaxed with little apparent structure. We investigate the temperature and metal…

Astrophysics · Physics 2009-01-19 E. O'Sullivan , J. M. Vrtilek , D. E. Harris , T. J. Ponman

We present Suzaku spectra of X-ray emission in the fields just off the LMC X-3 sight line. OVII, OVIII, and NeIX emission lines are clearly detected, suggesting the presence of an optically thin thermal plasma with an average temperature of…

Astrophysics · Physics 2008-12-18 Y. Yao , Q. D. Wang , T. Hagihara , K. Mitsuda , D. McCammon , N. Y. Yamasaki

We present the results from a series of ground-based radio observations toward a Planck Galactic Cold Clump (PGCC), PGCC G108.84-00.81, which is located in one curved filamentary cloud in the vicinity of an extended HII region Sh2-152 and…

We aim to directly determine the kinetic temperature and spatial density with formaldehyde for the $\sim$100 brightest ATLASGAL-selected clumps at 870 $\mu$m representing various evolutionary stages of high-mass star formation. Ten…

We summarize all available 13CO and accompanying 12CO measurements of local galaxy centers in transitions of J=5-4 and higher, including new APEX 13CO(6-5) and 12CO(6-5) observations of 11 galaxies. The observed integrated temperature…

Astrophysics of Galaxies · Physics 2024-09-06 F. P. Israel , R. Gusten , A. Lundgren

We report the discovery of diffuse ultraviolet light around late-type galaxies out to 5-20 kpc from the midplane using Swift and GALEX images. The emission is consistent with the stellar outskirts in the early-type galaxies but not in the…

Astrophysics of Galaxies · Physics 2015-06-18 Edmund Hodges-Kluck , Joel Bregman

Fully sampled degree-scale maps of the 13CO 2-1 and CO 4-3 transitions toward three members of the Lupus Molecular Cloud Complex - Lupus I, III, and IV - trace the column density and temperature of the molecular gas. Comparison with IR…

We study ten molecular transitions obtained from an unbiased 3 mm molecular line survey using the IRAM 30 m telescope toward 409 compact dust clumps identified by the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) to understand…

Astrophysics of Galaxies · Physics 2021-01-04 W. -J. Kim , F. Wyrowski , J. S. Urquhart , J. P. Pérez-Beaupuits , T. Pillai , M. Tiwari , K. M. Menten

Stars form in dense, dusty structures, which are embedded in larger clumps of molecular clouds often showing a clear filamentary structure on large scales (> 1pc). One of the best-studied regions in the Hi-GAL survey can be observed toward…

Astrophysics of Galaxies · Physics 2016-08-19 L. Olmi , M. Cunningham , D. Elia , P. Jones
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