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The Molecular Properties of Galactic HII Regions
L. D. Anderson, T. M. Bania, J. M. Jackson +5
We derive the molecular properties for a sample of 301 Galactic HII regions including 123 ultra compact (UC), 105 compact, and 73 diffuse nebulae. We analyze all sources within the…
Re-examining Larson's Scaling Relationships in Galactic Molecular Clouds
Mark Heyer, Coleman Krawczyk, Julia Duval +1
The properties of Galactic molecular clouds tabulated by Solomon etal (1987) (SRBY) are re-examined using the Boston University-FCRAO Galactic Ring Survey of 13CO J=1-0 emission. T…
SMA observations of Infrared Dark Clouds: A tale of two cores
J. M. Rathborne, J. M. Jackson, Q. Zhang +1
We present high-angular resolution sub-millimeter continuum images and molecular line spectra obtained with the SMA toward two massive cores that lie within Infrared Dark Clouds; o…
The Frequency of Mid-Infrared Excess Sources in Galactic Surveys
B. Uzpen, H. A. Kobulnicky, A. J. Monson +27
We have identified 230 Tycho-2 Spectral Catalog stars that exhibit 8 micron mid-infrared extraphotospheric excesses in the MidCourse Space Experiment (MSX) and Spitzer Space Telesc…
The Spitzer Survey of the Small Magellanic Cloud: S3MC Imaging and Photometry in the Mid- and Far-Infrared Wavebands
Alberto D. Bolatto, Joshua D. Simon, Snezana Stanimirovic +12
We present the initial results from the Spitzer Survey of the Small Magellanic Cloud (S3MC), which imaged the star-forming body of the Small Magellanic Cloud (SMC) in all seven MIP…
Infrared Dark Clouds: precursors to star clusters
J. M. Rathborne, J. M. Jackson, R. Simon
Infrared Dark Clouds (IRDCs) are dense molecular clouds seen as extinction features against the bright mid-infrared Galactic background. Millimeter continuum maps toward 38 IRDCs r…
The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
J. M. Jackson, J. M. Rathborne, R. Y. Shah +8
The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey is a new survey of Galactic 13CO (1-0) emission. The survey used the SEQUOIA multi pixel array o…
A Catalog of MSX Infrared Dark Cloud Candidates
Robert Simon, James M. Jackson, Jill M. Rathborne +1
We use 8.3 um mid-infrared images acquired with the Midcourse Space Experiment satellite to identify and catalog Infrared Dark Clouds (IRDCs) in the first and fourth quadrants of t…
Spitzer Space Telescope detection of the young supernova remnant 1E 0102.2-7219
Snezana Stanimirovic, Alberto D. Bolatto, Karin Sandstrom +5
We present infrared observations of the young, oxygen-rich supernova remnant 1E 0102.2-7219 (E0102) in the Small Magellanic Cloud, obtained with the Spitzer Space Telescope. The re…
Warm Molecular Gas Traced with CO J=7->6 in the Galaxy's Central 2 Parsecs: Dynamical Heating of the Circumnuclear Disk
C. M. Bradford, G. J. Stacey, T. Nikola +4
We present an 11 arcsec resolution map of the central two parsecs of the Galaxy in the CO J =7->6 rotational transition. The CO emission shows rotation about Sgr A*, but also evide…
A Search for Molecular Gas in GHz Peaked Spectrum Radio Sources
C. P. O'Dea, J. Gallimore, C. Stanghellini +2
We present searches for molecular gas (CO, OH, CS, and Ammonia) in six GHz Peaked Spectrum (GPS) radio sources. We do not detect gas in any source and place upper limits on the mas…
Discovery of a New Low-Latitude Milky Way Globular Cluster using GLIMPSE
Chip Kobulnicky, A. J. Monson, B. A Buckalew +28
Spitzer Space Telescope imaging as part of the Galactic Legacy Mid-Plane Survey Extraordinaire (GLIMPSE) reveals a previously unidentified low-latitude rich star cluster near l=31.…
The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
R. Indebetouw, J. S. Mathis, B. L. Babler +17
We determine and tabulate A(lambda)/A(K), the wavelength dependence of interstellar extinction, in the Galactic plane for 1.25um<lambda<8.0um along two lines of sight: l~42 and l~2…
The Structure, Kinematics and Physical Properties of the Molecular Gas in the Starburst Nucleus of NGC 253
T. A. D. Paglione, O. Yam, T. Tosaki +1
We present 5.2" x 2.6" resolution interferometry of CO J=1-0 emission from the starburst galaxy NGC 253. The high spatial resolution of these new data, in combination with recent h…
Unusual CO Line Ratios and kinematics in the N83/N84 Region of the Small Magellanic Cloud
Alberto D. Bolatto, Adam Leroy, James M. Jackson +1
We present new CO 1-0 and 2-1 observations of the N83/N84 molecular cloud complex in the south-east Wing of the Small Magellanic Cloud (SMC). While the 2-1/1-0 integrated line brig…
SPIFI: a direct-detection imaging spectrometer for submillimeter wavelengths
C. M. Bradford, G. J. Stacey, M. R. Swain +6
The South Pole Imaging Fabry-Perot Interferometer (SPIFI) is the first instrument of its kind -- a direct-detection imaging spectrometer for astronomy in the submillimeter band. SP…
AST/RO Observations of Atomic Carbon near the Galactic Center
Roopesh Ojha, Antony A. Stark, Henry H. Hsieh +6
We present a coarsely-sampled map of the region |l|<=2 degrees, |b|<=0.1 degrees in the 492 GHz 3P1-->3P0 fine structure transition of neutral carbon, observed with the Antarctic S…
First Detection of Submillimeter [C I] Emission in the Small Magellanic Cloud
Alberto D. Bolatto, James M. Jackson, Kathleen E. Kraemer +1
We report the first detection of [CI] (3P1-3P0) emission at 609 um in a region of the Small Magellanic Cloud (N27). Environments poor in heavy elements and dust such as the SMC are…
Carbon in the N159/N160 Complex of the Large Magellanic Cloud
Alberto D. Bolatto, James M. Jackson, Frank P. Israel +2
We present a study of carbon in N159/N160, an HII region complex in the low metallicity Large Magellanic Cloud. We have mapped this region, which comprises four distinct molecular…
Submillimeter observations of IC 10: the dust properties and neutral carbon content of a low metallicity starburst
Alberto D. Bolatto, James M. Jackson, Christine D. Wilson +1
We present submillimeter observations of the Local Group, metal-poor, irregular dwarf galaxy IC 10, directly relevant to the interaction between interstellar medium and star format…
A semianalytical model for the observational properties of the dominant carbon species at different metallicities
Alberto D. Bolatto, James M. Jackson, James G. Ingalls
We present a simple, semianalytical approach to compute the line emission of C+, C and CO in Photodissociation Regions of varying metallicity that depends on very few parameters an…