Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Cotera, A. S."'
Autor:
Cotera, Angela S., Hankins, Matthew J., Bally, John, Barnes, Ashley T., Battersby, Cara D., Hatchfield, H Perry, Herter, Terry L., Lau, Ryan M., Longmore, Steven N., Mills, Elisabeth A. C., Morris, Mark R., Radomski, James T., Simpson, Janet P., Stephens, Zachary, Walker, Daniel L.
The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies, consequently the inner $\sim$400 pc has been the target of numerous large surveys at all accessible wavelengths. In this paper we present a
Externí odkaz:
http://arxiv.org/abs/2407.08054
We present near-infrared (IR) spectra of two planetary nebula (PN) candidates in close lines of sight toward the Galactic center (GC) using the Gemini Near-Infrared Spectrograph (GNIRS) at Gemini North. High-resolution images from radio continuum and
Externí odkaz:
http://arxiv.org/abs/2102.09806
Autor:
Simpson, Janet P., Colgan, Sean W. J., Cotera, Angela S., Kaufman, Michael J., Stolovy, Susan R.
Sgr B1 is a luminous H II region in the Galactic Center immediately next to the massive star-forming giant molecular cloud Sgr B2 and apparently connected to it from their similar radial velocities. In 2018 we showed from SOFIA FIFI-LS observations o
Externí odkaz:
http://arxiv.org/abs/2102.07031
Autor:
Hankins, Matthew J., Lau, Ryan M., Radomski, James T., Cotera, Angela S., Morris, Mark R., Mills, Elisabeth A. C., Walker, Daniel L., Barnes, Ashley T., Simpson, Janet P., Herter, Terry L., Longmore, Steven N., Bally, John, Kasliwal, Mansi M., Sabha, Nadeen B., Garcia-Marin, Macarena
The Galactic Center contains some of the most extreme conditions for star formation in our Galaxy as well as many other phenomena that are unique to this region. Given our relative proximity to the Galactic Center, we are able to study details of phy
Externí odkaz:
http://arxiv.org/abs/2001.05487
Autor:
Simpson, Janet P., Colgan, Sean W. J., Cotera, Angela S., Kaufman, Michael J., Stolovy, Susan R.
The current paradigm of Galactic Center (GC) gas motions and star formation envisions sequential star formation in streams of gas as they pass near the supermassive black hole, Sgr A*. This is based on the relative positions of dense molecular clouds
Externí odkaz:
http://arxiv.org/abs/1810.08301
Autor:
Simpson, Janet P., Whitney, Barbara A., Hines, Dean C., Schneider, Glenn, Burton, Michael G., Colgan, Sean W. J., Cotera, Angela S., Erickson, Edwin F., Wolff, Michael J.
Massive young stellar objects (YSOs), like low-mass YSOs, are thought to be surrounded by optically thick envelopes and/or discs and are observed to have associated regions that produce polarized light at near-infrared wavelengths. These polarized re
Externí odkaz:
http://arxiv.org/abs/1309.0856
Autor:
Simpson, Janet P., Cotera, Angela S., Burton, Michael G., Cunningham, Maria, Lo, Nadia, Bains, Indra
The G333 giant molecular cloud contains a few star clusters and H II regions, plus a number of condensations currently forming stars. We have mapped 13 of these sources with the appearance of young stellar objects (YSOs) with the Spitzer Infrared Spe
Externí odkaz:
http://arxiv.org/abs/1108.5776
Autor:
An, Deokkeun, Ramírez, Solange V., Sellgren, Kris, Arendt, Richard G., Boogert, A. C. Adwin, Robitaille, Thomas P., Schultheis, Mathias, Cotera, Angela S., Smith, Howard A., Stolovy, Susan R.
We present results from our spectroscopic study, using the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope, designed to identify massive young stellar objects (YSOs) in the Galactic Center (GC). Our sample of 107 YSO candidates was se
Externí odkaz:
http://arxiv.org/abs/1104.4788
Autor:
Mauerhan, Jon C., Morris, Mark R., Cotera, Angela S., Dong, Hui, Wang, Q. Daniel, Stolovy, Susan R., Lang, Cornelia C., Glass, Ian S.
We report on the discovery of a luminous blue variable (LBV) lying ~7 pc in projection from the Quintuplet cluster. This source, which we call LBV G0.120-0.048, was selected for spectroscopy owing to its detection as a strong source of Paschen-alpha
Externí odkaz:
http://arxiv.org/abs/1002.3379
Publikováno v:
Astrophys.J.710:706-728,2010
We present new identifications of infrared counterparts to the population of hard X-ray sources near the Galactic center detected by the Chandra X-ray Observatory. We have confirmed 16 new massive stellar counterparts to the X-ray population, includi
Externí odkaz:
http://arxiv.org/abs/0912.1055