Zobrazeno 1 - 10
of 702
pro vyhledávání: '"Wardle, M."'
Autor:
Yusef-Zadeh, F., Zhao, Jun-Hui, Arendt, R., Wardle, M., Royster, M., Rudnick, L., Michail, J.
We investigate the nature of a Galactic center source, G0.17+0.15, lying along the northern extension of the Radio Arc near l~0.2deg. G0.17+0.15 is an HII region located toward the eastern edge of the radio bubble, embedded within the highly polarize
Externí odkaz:
http://arxiv.org/abs/2402.12450
Autor:
Yusef-Zadeh, F., Zhao, Jun-Hui, Arendt, R., Wardle, M., Heinke, C. O., Royster, M., Lang, C., Michail, J.
The Snake is a remarkable Galactic center radio filament with a morphology characterized by two kinks along its $\sim 20'$ extent. The major and minor kinks are located where the filament is most distorted from a linear magnetized structure running p
Externí odkaz:
http://arxiv.org/abs/2402.12441
Autor:
Yusef-Zadeh, F., Wardle, M., Arendt, R., Hewitt, J. W., Hu, Y., Lazarian, A., Kassim, N., Hyman, S., Heywood, I.
We present highly sensitive measurements taken with MeerKAT at 1280 MHz as well as archival GBT, MWA and VLA images at 333, 88 and 74 MHz. We report the detection of synchrotron radio emission from the infrared dark cloud (IRDC) associated with the h
Externí odkaz:
http://arxiv.org/abs/2310.19901
We have examined the distribution of the position angle (PA) of the Galactic center filaments with lengths $L > 66''$ and $ < 66''$ as well as their length distribution as a function of PA. We find bimodal PA distributions of the filaments, long and
Externí odkaz:
http://arxiv.org/abs/2306.01071
Autor:
Petzler, Anita, Dawson, J. R., Nguyen, Hiep, Heiles, Carl, Wardle, M., Lee, M. -Y., Murray, Claire E., Thompson, K. L., Stanimirovic, Snezana
We present observations of the four 2 Pi 3/2 J = 3/2 ground-rotational state transitions of the hydroxyl molecule (OH) along 107 lines of sight both in and out of the Galactic plane: 92 sets of observations from the Arecibo telescope and 15 sets of o
Externí odkaz:
http://arxiv.org/abs/2302.11116
Magnetized radio filaments are found in abundance in the inner few hundred pc of our Galaxy. Progress in understanding this population of filaments has been slow, in part due to a lack of detection elsewhere in the Galaxy or in external galaxies. Rec
Externí odkaz:
http://arxiv.org/abs/2210.04913
Recent MeerKAT radio continuum observations of the Galactic center at 20 cm show a large population of nonthermal radio filaments (NRFs) in the inner few hundred pc of the Galaxy. We have selected a sample of 57 radios ources, mainly compact objects,
Externí odkaz:
http://arxiv.org/abs/2208.11589
Autor:
Yusef-Zadeh, F., Arendt, R. G., Wardle, M., Boldyrev, S., Heywood, I., Cotton, W., Camilo, F.
We carry out a population study of magnetized radio filaments in the Galactic center using MeerKAT data by focusing on the spacing between the filaments that are grouped. The morphology of a sample of 43 groupings containing 174 magnetized radio fila
Externí odkaz:
http://arxiv.org/abs/2206.10732
We present high-pass filtered continuum images of the inner $3.5^\circ\times2.5^\circ$ of the Galactic center at 20 cm with $6.4''$ resolution. These mosaic images are taken with MeerKAT and reveal a large number of narrow filaments, roughly an order
Externí odkaz:
http://arxiv.org/abs/2201.10552
Autor:
Yusef-Zadeh, F., Wardle, M., Heinke, C., Arendt, R., Royster, M., Heywood, I., Cotton, W., Camilo, F., Michail, J.
The recent detection of an X-ray filament associated with the radio filament G0.173-0.42 adds to four other nonthermal radio filaments with X-ray counterparts, amongst the more than 100 elongated radio structures that have been identified as synchrot
Externí odkaz:
http://arxiv.org/abs/2010.09739