The magnetic environment in the central region of nearby galaxies (2008)
Lang, Cornelia C., Drout, Maria R.
The central regions of galaxies harbor some of the most extreme physical phenomena, including dense stellar clusters, non-circular motions of molecular clouds and strong and pervasive magnetic field...
Non-thermal Emission in Sagittarius B? (2008)
Lang, Cornelia C., Palmer, Patrick, Goss, W. M.
We summarize three recent publications which suggest that the Galactic center region Sagittarius B (Sgr B) may contain non-thermal radio components (Crocker et al. 2007, Hollis et al. 2007 and...
A Radio Nebula Surrounding the Ultra-luminous X-ray Source in NGC 5408 (2007)
Lang, Cornelia C., Kaaret, Philip, Corbel, Stephane, Mercer, Allison
New radio observations of the counterpart of the ultraluminous X-ray source in NGC 5408 show for the first time that the radio emission is resolved with an angular size of 1.5 to 2.0 arcseconds. This...
A 62 Day X-Ray Periodicity and an X-Ray Flare from the Ultraluminous X-Ray Source in M82 (2006)
Kaaret, Philip, Simet, Melanie G., Lang, Cornelia C.
In 240 days of X-ray monitoring of M82, we have discovered an X-ray periodicity at $62.0 \pm 2.5$ days with a peak to peak amplitude corresponding to an isotropic luminosity of $2.4 \times 10^{40}...
The Orbital Period of the Ultraluminous X-ray Source in M82 (2006)
Kaaret, Philip, Simet, Melanie G., Lang, Cornelia C.
The ultraluminous x-ray source (ULX) in the galaxy M82 has been identified as a possible intermediate-mass black hole. We have found that the x-ray flux from M82 is modulated with a peak-to-peak...
Lang, Cornelia C., Johnson, Kelsey E., Goss, W. M., Rodriguez, Luis F.
A multi-frequency, multi-configuration study has been made of the compact radio sources in the Galactic Center Quintuplet and Arches stellar clusters using the Very Large Array. Ten radio sources...
A Radio Transient 0.1 pc from Sagittarius A* (2005)
Bower, Geoffrey C., Roberts, Doug A., Yusef-Zadeh, Farhad, Backer, Donald C., Cotton, W. D., Goss, W. M., ...
We report the discovery of a transient radio source 2.7 arcsec (0.1 pc projected distance) South of the Galactic Center massive black hole, Sagittarius A*. The source flared with a peak of at least...
X-ray Thread G0.13-0.11: A Pulsar Wind Nebula? (2002)
Wang, Q. Daniel, Lu, Fangjun, Lang, Cornelia C.
We have examined Chandra observations of the recently discovered X-ray thread G0.13-0.11 in the Galactic center Radio Arc region. Part of the {\sl Chandra} data was studied by Yusef-Zadeh, Law, &...
Lang, Cornelia C., Goss, W. M., Morris, Mark
The Owens Valley Radio Observatory (OVRO) millimeter array was used to make observations of the CS(2-1) line (at 97.981 GHz) arising from the G0.07+0.04 region of the ``-30 km/s'' molecular cloud...
Lang, Cornelia C., Goss, W. M., Rodriguez, Luis F.
The Galactic center Arches stellar cluster, detected and studied until now only in the near-infrared, is comprised of at least one hundred massive (M>20 Msun) stars. Here we report the detection at...
A VLA H92alpha Study of the Arched Filament Complex Near the Galactic Center (2001)
Lang, Cornelia C., Goss, W. M., Morris, Mark
The VLA has been used at 8.3 GHz in the DnC and CnB array configurations to carry out an H92alpha recombination line study (at 8.3 GHz) of the ionized gas in the Arched Filaments H II complex, which...
Lang, Cornelia C., Anantharamaiah, K.R., Kassim, N.E., Lazio, T.J.W.
We report the discovery of a new nonthermal filament, G358.85+0.47, the ``Pelican,'' located ~225 pc in projection from Sagittarius A and oriented parallel to the Galactic plane. VLA continuum...
Lang, Cornelia C., Figer, Don F., Goss, W. M., Morris, Mark
VLA images of the Sickle and Pistol H II regions near the Galactic center at 3.6 and 6 cm reveal six point sources in the region where the dense Quintuplet stellar cluster is located. The spectral...
A Radio Polarimetric Study of the Galactic Center Threads (1999)
Lang, Cornelia C., Morris, Mark, Echevarria, Luis
Multi-frequency, polarimetric VLA observations of the non-thermal filaments (NTF's), G0.08+0.15, and G359.96+0.09, also known as the Northern and Southern Threads are presented at 20, 6, 3.6 and 2...
Lang, Cornelia C., Anantharamaiah, K. R., Kassim, N. E., Lazio, T. J. W.
We report the discovery of a new non-thermal filament, G358.85+0.47, the ``Pelican'', located ~225 pc in projection from SgrA, and oriented parallel to the Galactic plane. VLA continuum observations...