Search Publications
Evolution of the Hub-filament Structures in IC 5146 in the Context of the Energy Balance of Gravity, Turbulence, and Magnetic Field
Kwon, Woojin; Soam, Archana; Cho, Jungyeon +3 more
We present the results of 850 µm polarization and C18O (3 - 2) line observations toward the western hub-filament structure (W-HFS) of the dark Streamer in IC 5146 using the James Clerk Maxwell Telescope SCUBA-2/POL-2 and HARP instruments. We aim to investigate how the relative importance of the magnetic field, gravity, and turbule…
Tracers of Dense Gas in the Outer Galaxy
Jose, Jessy; Kim, Kee-Tae; Kauffmann, Jens +5 more
We have mapped $\mathrm{HCN}$ and HCO+ (J = 1 → 0) line emission toward a sample of seven star-forming regions (with $12+\mathrm{log}[{\rm{O}}/{\rm{H}}]$ ranging from 8.34 to 8.69) in the outer Milky Way (Galactocentric distance >9.5 kpc), using the 14 m radio telescope of the Taeduk Radio Astronomy Observatory. We compare these two …
Far-ultraviolet to FIR Spectral-energy Distribution Modeling of the Stellar Formation History of the M31 Bulge
Leahy, Denis; Leahy, Cameron; Seminoff, Noah
M31 is being surveyed at far- and near-ultraviolet with the UVIT telescope on AstroSat. The central bulge of M31 was observed in the N279N (275-280 nm), N219M (200-240 nm), F172M (160-185 nm), F169M (145-175 nm), and F148W (120-180 nm) filters. These images are made publicly available here. The UVIT data are supplemented with Sloan Digital Sky Sur…
SOFIA FEEDBACK Survey: PDR Diagnostics of Stellar Feedback in Different Regions of RCW 49
Schneider, N.; Stutzki, J.; Tielens, A. G. G. M. +13 more
We quantified the effects of stellar feedback in RCW 49 by determining the physical conditions in different regions using the [C II] 158 µm and [O I] 63 µm observations from SOFIA, the 12CO (3-2) observations from APEX, and the H2 line observations from Spitzer telescopes. Large maps of RCW 49 were observed with t…
The Population of Compact Radio Sources in M17
Menten, Karl M.; Rodríguez, Luis F.; Loinard, Laurent +7 more
We present a catalog of radio sources of the M17 region based on deep X-band radio observations centered at 10 GHz obtained with the Jansky Very Large Array in the A configuration. We detect a total of 194 radio sources, 12 of them extended and 182 compact. We find that a significant fraction (at least 40% in our catalog) have suspected gyrosynchr…
Environmental Effects in Herschel Observations of the Ionized Carbon Content of Star-forming Dwarf Galaxies in the Virgo Cluster
Fadda, Dario; Davies, Jonathan; Minchin, Robert +2 more
We use archival Herschel data to examine the singly ionized carbon ([C II]) content of 14 star-forming dwarf galaxies in the Virgo cluster. We use spectral energy distribution fits to far-infrared, mid-infrared, near-infrared, optical, and ultraviolet data to derive the total infrared continuum (TIR) for these galaxies. We compare the [C II]/TIR r…
The Dust Mass of Supernova Remnants in M31
Ren, Yi; Jiang, Biwei; Zhao, He +2 more
The dust temperature and mass of the supernova remnants (SNRs) in M31 are estimated by fitting the infrared spectral energy distribution calculated from the images in the Spitzer/IRAC4 and MIPS24, Herschel/PACS70, 100, and 160, and Herschel/SPIRE 250 and 350 µm bands. Twenty SNRs with relatively reliable photometry exhibit an average dust te…