Search Publications
The FUV to Near-IR Morphologies of Luminous Infrared Galaxies in the Goals Sample
Le Floc'h, E.; Surace, J. A.; Inami, H. +9 more
We compare the morphologies of a sample of 20 luminous infrared galaxies (LIRGs) from the Great Observatories All-sky LIRG Survey (GOALS) in the FUV, B, I, and H bands, using the Gini (G) and M20 parameters to quantitatively estimate the distribution and concentration of flux as a function of wavelength. Hubble Space Telescope (HST) ima…
The X-Ray Properties of Five Galactic Supernova Remnants Detected by the Spitzer GLIMPSE Survey
Rho, Jeonghee; Heinke, Craig O.; Pannuti, Thomas G. +1 more
We present a study of the X-ray properties of five Galactic supernova remnants (SNRs)—Kes 17 (G304.6+0.1), G311.5-0.3, G346.6-0.2, CTB 37A (G348.5+0.1), and G348.5-0.0—that were detected in the infrared by Reach et al. in an analysis of data from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) that was conducted by the Spitz…
Outflows, Dusty Cores, and a Burst of Star Formation in the North America and Pelican Nebulae
Ginsburg, Adam; Bally, John; Stringfellow, Guy S. +3 more
We present observations of near-infrared 2.12 µm molecular hydrogen outflows emerging from 1.1 mm dust continuum clumps in the North America and Pelican Nebula (NAP) complex selected from the Bolocam Galactic Plane Survey (BGPS). Hundreds of individual shocks powered by over 50 outflows from young stars are identified, indicating that the du…
X-Ray Observations of Complex Temperature Structure in the Cool-core Cluster A85
Datta, Abhirup; Burns, Jack O.; Schenck, David E. +1 more
X-ray observations were used to examine the complex temperature structure of A85, a cool-core galaxy cluster. Temperature features can provide evidence of merging events which shock heat the intracluster gas. Temperature maps were made from both Chandra and XMM-Newton observations. The combination of a new, long-exposure XMM observation and an imp…
Multi-frequency Observations of a Superbubble in the LMC: The Case of LHA 120-N 70
Haberl, F.; Filipović, M. D.; Maggi, P. +8 more
We present a detailed study of new Australia Telescope Compact Array and XMM-Newton observations of LHA 120-N 70 (hereafter N 70), a spherically shaped object in the Large Magellanic Cloud, classified as a superbubble. Both archival and new observations were used to produce high quality radio continuum, X-ray, and optical images. The radio spectra…
Bright Debris Disk Candidates Detected with the AKARI/Far-infrared Surveyor
Jiang, Peng; Wang, Tinggui; Liu, Qiong
We cross-correlate the Hipparcos main-sequence star catalog with the AKARI/FIS catalog and identify 136 stars (at >90% reliability) with far-infrared detections in at least one band. After rejecting 57 stars classified as young stellar objects, Be stars and other type stars with known dust disks or with potential contaminations, and 4 stars wit…
HFPK 334: An Unusual Supernova Remnant in the Small Magellanic Cloud
Haberl, F.; Filipović, M. D.; Urošević, D. +5 more
We present new Australia Telescope Compact Array radio-continuum and XMM-Newton/Chandra X-ray Observatory observations of the unusual supernova remnant (SNR) HFPK 334 in the Small Magellanic Cloud (SMC). The remnant follows a shell-type morphology in the radio continuum and has a size of ~20 pc at the SMC distance. The X-ray morphology is similar;…
The Ultraviolet Attenuation Law in Backlit Spiral Galaxies
Holwerda, Benne W.; Schawinski, Kevin; Keel, William C. +2 more
The effective extinction law (attenuation behavior) in galaxies in the emitted ultraviolet (UV) regime is well known only for actively star-forming objects and combines effects of the grain properties, fine structure in the dust distribution, and relative distributions of stars and dust. We use Galaxy Evolution Explorer, XMM Optical Monitor, and H…
Interesting Features in the Combined GALEX and Sloan Color Diagrams of Solar-like Galactic Populations
Smith, Myron A.; Bianchi, Luciana; Shiao, Bernard
We report on intriguing photometric properties of Galactic stars observed in the Galaxy Evolution Explorer (GALEX) satellite's far-UV (FUV) and near-UV (NUV) bandpasses, as well as from the ground-based Sloan Digital Sky Survey (SDSS) and the Kepler Input Catalog. The first property is that the (FUV - NUV) color distribution of stars in the Kepler…
Exploring Overstabilities in Saturn's A Ring Using Two Stellar Occultations
Nicholson, P. D.; Hedman, M. M.; Salo, H.
Certain regions of Saturn's rings exhibit periodic opacity variations with characteristic radial wavelengths of up to a few hundred meters that have been attributed to viscous overstabilities. The Visual and Infrared Mapping Spectrometer on board the Cassini spacecraft observed two stellar occultations of the star γ Crucis that had sufficient reso…