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[Fe II] and H2 filaments in the Supernova Remnant G11.2-0.3: Supernova Ejecta and Presupernova Circumstellar Wind
Bon-Chul Koo, Dae-Sik Moon, Ho-Gyu Lee +2
We present the results of near-infrared imaging and spectroscopic observations of the young, core-collapse supernova remnant (SNR) G11.2-0.3. In the [Fe II] 1.644 um image, we firs…
First results from the Arecibo Galactic HI Survey: the disk/halo interface region in the outer Galaxy
Snezana Stanimirovic, Mary Putman, Carl Heiles +11
The consortium for Galactic studies with the Arecibo L-band Feed Array (ALFA) is conducting a neutral hydrogen (HI) survey of the whole Arecibo sky (declination range from -1 to 38…
A "Missing" Supernova Remnant revealed by the 21-cm Line of Atomic Hydrogen
B-C Koo, J-h Kang, C. J. Salter
Although some 20--30,000 supernova remnants (SNRs) are expected to exist in the Milky Way, only about 230 are presently known. This implies that most SNRs are ``missing''. Recently…