Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Bushouse, H."'
Autor:
Yusef-Zadeh, F., Schödel, R., Wardle, M., Bushouse, H., Cotton, W., Royster, M. J., Kunneriath, D., Roberts, D. A., Gallego-Cano, E.
We present 44 and 226 GHz observations of the Galactic center within 20$"$ of Sgr A*. Millimeter continuum emission at 226 GHz is detected from eight stars that have previously been identified at near-IR and radio wavelengths. We also detect a 5.8 mJ
Externí odkaz:
http://arxiv.org/abs/1706.02750
Autor:
Mossoux, E., Grosso, N., Bushouse, H., Eckart, A., Yusef-Zadeh, F., Plambeck, R. L., Peissker, F., Valencia-S., M., Porquet, D., Cotton, W. D., Roberts, D. A.
Publikováno v:
A&A 589, A116 (2016)
The supermassive black hole Sgr A* is located at the Milky Way center. We studied its flaring activity close to the DSO/G2 pericenter passage to constrain the physical properties and origin of the flares. Simultaneous/coordinated observations were ma
Externí odkaz:
http://arxiv.org/abs/1603.01048
Autor:
Yusef-Zadeh, F., Wardle, M., Schödel, R., Roberts, D. A., Cotton, W., Bushouse, H., Arendt, R., Royster, M.
We present high-resolution multiwavelength radio continuum images of the region within 150$"$ of Sgr A*, revealing a number of new extended features and stellar sources in this region. First, we detect a continuous 2" east-west ridge of radio emissio
Externí odkaz:
http://arxiv.org/abs/1601.00116
Autor:
Yusef-Zadeh, F., Bushouse, H., Schödel, R., Wardle, M., Cotton, W., Roberts, D. A., Nogueras-Lara, F., Gallego-Cano, E.
Recent broad-band 34 and 44 GHz radio continuum observations of the Galactic center have revealed 41 massive stars identified with near-IR counterparts, as well as 44 proplyd candidates within 30" of Sgr A*. Radio observations obtained in 2011 and 20
Externí odkaz:
http://arxiv.org/abs/1506.07182
Autor:
Valencia-S., M., Eckart, A., Zajacek, M., Peissker, F., Parsa, M., Grosso, N., Mossoux, E., Porquet, D., Jalali, B., Karas, V., Yazici, S., Shahzamanian, B., Sabha, N., Saalfeld, R., Smajic, S., Grellmann, R., Moser, L., Horrobin, M., Borkar, A., Marin, M. Garcia, Dovciak, M., Kunneriath, D., Karssen, G. D., Bursa, M., Straubmeier, C., Bushouse, H.
We analyse and report in detail new near-infrared (1.45 - 2.45 microns) observations of the Dusty S-cluster Object (DSO/G2) during its approach to the black hole at the center of the Galaxy that were carried out with ESO VLT/SINFONI between February
Externí odkaz:
http://arxiv.org/abs/1410.8731
Autor:
Yusef-Zadeh, F., Roberts, D. A., Bushouse, H., Wardle, M., Cotton, W., Royster, M., van Moorsel, G.
Very Large Array observations of the Galactic Center at 7 mm have produced an image of the 30 arcseconds surrounding Sgr A* with a resolution of 82x42 milliarcseconds (mas). A comparison with IR images taken simultaneously with the Very Large Telesco
Externí odkaz:
http://arxiv.org/abs/1407.4135
Autor:
Yusef-Zadeh, F., Royster, M., Wardle, M., Arendt, R., Bushouse, H., Lis, D. C., Pound, M. W., Roberts, D. A., Whitney, B., Wootten, A.
ALMA observations of the Galactic center with spatial resolution $2.61"\times0.97"$ resulted in the detection of 11 SiO (5-4) clumps of molecular gas within 0.6pc (15$"$) of Sgr A*, interior to the 2-pc circumnuclear molecular ring. The three SiO (5-
Externí odkaz:
http://arxiv.org/abs/1303.3403
Autor:
Yusef-Zadeh, F., Arendt, R., Bushouse, H., Cotton, W., Haggard, D., Pound, M. W., Roberts, D. A., Royster, M., Wardle, M.
The compact radio source Sgr A* is coincident with a 4 million solar mass black hole at the dynamical center of the Galaxy and is surrounded by dense orbiting ionized and molecular gas. We present high resolution radio continuum images of the central
Externí odkaz:
http://arxiv.org/abs/1208.1193
Autor:
Yusef-Zadeh, F., Wardle, M., Dodds-Eden, K., Heinke, C. O., Gillessen, S., Genzel, R., Bushouse, H., Grosso, N., Porquet, D.
The X-ray and near-IR emission from Sgr A* is dominated by flaring, while a quiescent component dominates the emission at radio and sub-mm wavelengths. The spectral energy distribution of the quiescent emission from Sgr A* peaks at sub-mm wavelengths
Externí odkaz:
http://arxiv.org/abs/1203.2188
We present HST/NICMOS data to study the surface brightness distribution of stellar light within the inner 10" of Sgr A* at 1.4, 1.7 and 1.9 microns. We use these data to independently examine the surface brightness distribution that had been measured
Externí odkaz:
http://arxiv.org/abs/1109.2175