Publications (18)
A multiwavelength view of the protostellar binary IRAS04325+2402: a case for turbulent fragmentation
A. Scholz, K. Wood, D. Wilner +6
IRAS04325+2402 (herafter IRAS04325) is a complex protostellar system hosting two young stellar objects (AB and C in the following) at a separation of 1250AU. Here we present new de…
The youngest massive protostars in the Large Magellanic Cloud
M. Sewilo, R. Indebetouw, L. R. Carlson +19
We demonstrate the unique capabilities of Herschel to study very young luminous extragalactic young stellar objects (YSOs) by analyzing a central strip of the Large Magellanic Clou…
SAGE-Var: An Infrared Survey of Variability in the Magellanic Clouds
D. Riebel, M. L. Boyer, S. Srinivasan +9
We present the first results from the SAGE-Var program, a follow on to the Spitzer legacy program Surveying the Agents of Galaxy Evolution (SAGE; Meixner, et al. 2006). We obtained…
A spatially resolved study of photoelectric heating and [CII] cooling in the LMC
D. Rubin, S. Hony, S. C. Madden +20
(abridged) We study photoelectric heating throughout the Large Magellanic Cloud. We quantify the importance of the [CII] cooling line and the photoelectric heating process of vario…
Herschel far-infrared photometric monitoring of protostars in the Orion Nebula Cluster
N. Billot, M. Morales-Calderon, J. R. Stauffer +2
We have obtained time series observations of the Orion Nebula Cluster at 70 microns and 160 microns from the Herschel/PACS Photometer. This represents the first wide-field far-infr…
Variable Evolved Stars and YSOs Discovered in the Large Magellanic Cloud using the SAGE Survey
Uma P. Vijh, M. Meixner, B. Babler +13
We present initial results and source lists of variable sources in the Large Magellanic Cloud (LMC) for which we detect thermal infrared variability from the SAGE (Surveying the Ag…
Herschel Inventory of The Agents of Galaxy Evolution (HERITAGE): the Large Magellanic Cloud dust
M. Meixner, F. Galliano, S. Hony +52
The HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) of the Magellanic Clouds will use dust emission to investigate the life cycle of matter in both the Large and Sm…
Is Dust Forming on the Red Giant Branch in 47 Tuc?
M. L. Boyer, J. Th. van Loon, I. McDonald +13
Using Spitzer IRAC observations from the SAGE-SMC Legacy program and archived Spitzer IRAC data, we investigate dust production in 47 Tuc, a nearby massive Galactic globular cluste…
Observations and modeling of the inner disk region of T Tauri stars
R. L. Akeson, C. H. Walker, K. Wood +7
We present observations of four T Tauri stars using long baseline infrared interferometry from the Palomar Testbed Interferometer. The target sources, T Tau N, SU Aur, RY Tau and D…
The Far-Infrared Spectral Energy Distributions of X-ray-selected Active Galaxies
J. Kuraszkiewicz, B. J. Wilkes, E. J. Hooper +11
[Abridged] We present ISO far-infrared (IR) observations of 21 hard X-ray selected AGN from the HEAO-1 A2 sample. We compare the far-IR to X-ray spectral energy distributions (SEDs…
ALMA Observations of the Galactic Center: SiO Outflows and High Mass Star Formation near Sgr A*
F. Yusef-Zadeh, M. Royster, M. Wardle +7
ALMA observations of the Galactic center with spatial resolution resulted in the detection of 11 SiO (5-4) clumps of molecular gas within 0.6pc (15) of Sgr A*…
Structure Generation by Irradiation: What can GLIMPSE teach us about the ISM structure?
F. Heitsch, B. Whitney, R. Indebetouw +4
Diffuse emission in the mid-infrared shows a wealth of structure, that lends itself to high-resolution structure analysis of the interstellar gas. A large part of the emission come…
Shocked Molecular Hydrogen and Broad CO lines from the Interacting Supernova Remnant HB 3
J. Rho, T. H. Jarrett, L. N. Tram +6
We present the detections of shocked molecular hydrogen (H2) gas in near- and mid-infrared and broad CO in millimeter from the mixed-morphology supernova remnant (SNR) HB~3 (G132.7…
Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center
F. Yusef-Zadeh, J. H. Lacy, M. Wardle +4
A group of four compact HII regions associated with the well-known 50 km/s molecular cloud is the closest site of on-going star formation to the dynamical center of the Galaxy, at…
The SAGE-Spec Spitzer Legacy program: The life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification I
Paul M. Woods, J. M. Oliveira, F. Kemper +55
We present the classification of 197 point sources observed with the Infrared Spectrograph in the SAGE-Spec Legacy program on the Spitzer Space Telescope. We introduce a decision-t…
Spitzer SAGE survey of the Large Magellanic Cloud II: Evolved Stars and Infrared Color Magnitude Diagrams
R. D. Blum, J. R. Mould, K. A. Olsen +47
Color-magnitude diagrams (CMDs) are presented for the Spitzer SAGE (Surveying the Agents of a Galaxy's Evolution) survey of the Large Magellanic Cloud (LMC). IRAC and MIPS 24 um ep…
The missing cavities in the SEEDS polarized scattered light images of transitional protoplanetary disks: a generic disk model
R. Dong, R. Rafikov, Z. Zhu +53
Transitional circumstellar disks around young stellar objects have a distinctive infrared deficit around 10 microns in their Spectral Energy Distributions (SED), recently measured…
Star Formation in the Central 400 pc of the Milky Way: Evidence for a Population of Massive YSOs
F. Yusef-Zadeh, J. W. Hewitt, R. G. Arendt +8
The central kpc of the Milky Way might be expected to differ significantly from the rest of the Galaxy with regard to gas dynamics and the formation of YSOs. We probe this possibil…