Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Colbert, E. J. M."'
The role of starburst winds versus active galactic nuclei (AGN) jets/winds in the formation of the kiloparsec scale radio emission seen in Seyferts is not yet well understood. In order to be able to disentangle the role of various components, we have
Externí odkaz:
http://arxiv.org/abs/1912.09511
We present results from multi-frequency polarization-sensitive Very Large Array observations of the Seyfert-starburst composite galaxy NGC3079. Our sensitive radio observations reveal a plethora of radio filaments comprising the radio lobes in this g
Externí odkaz:
http://arxiv.org/abs/1907.12765
This paper presents general strategies for cyber war gaming of Cyber-Physical Systems (CPSs) that are used for cyber security research at the U.S. Army Research Laboratory (ARL). Since Supervisory Control and Data Acquisition (SCADA) and other CPSs a
Externí odkaz:
http://arxiv.org/abs/1708.07424
Autor:
Jenkins, L. P., Brandt, W. N., Colbert, E. J. M., Koribalski, B., Kuntz, K. D., Levan, A. J., Ojha, R., Roberts, T. P., Ward, M. J., Zezas, A.
We have performed an X-ray study of the nearby barred spiral galaxy NGC1672, primarily to ascertain the effect of the bar on its nuclear activity. We use both Chandra and XMM-Newton observations to investigate its X-ray properties, together with supp
Externí odkaz:
http://arxiv.org/abs/1104.1649
Autor:
Clark, D. M., Eikenberry, S. S., Brandl, B. R., Wilson, J. C., Carson, J. C., Henderson, C. P., Hayward, T. L., Barry, D. J., Ptak, A. F., Colbert, E. J. M.
We use WIRC, IR images of the Antennae (NGC 4038/4039) together with the extensive catalogue of 120 X-ray point sources (Zezas et al. 2006) to search for counterpart candidates. Using our proven frame-tie technique, we find 38 X-ray sources with IR c
Externí odkaz:
http://arxiv.org/abs/1008.1064
To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of accreting intermediate-mass black holes (IMBHs), we have undertaken a program to identify ULXs and a lower luminosity X-ray comparison sample with the
Externí odkaz:
http://arxiv.org/abs/0807.1547
Autor:
Clark, D. M., Eikenberry, S. S., Brandl, B. R., Wilson, J. C., Carson, J. C., Henderson, C. P., Hayward, T. L., Barry, D. J., Ptak, A. F., Colbert, E. J. M.
We use the previously-identified 15 infrared star-cluster counterparts to X-ray point sources in the interacting galaxies NGC 4038/4039 (the Antennae) to study the relationship between total cluster mass and X-ray binary number. This significant popu
Externí odkaz:
http://arxiv.org/abs/0801.2594
Autor:
Jenkins, L. P., Brandt, W. N., Colbert, E. J. M., Levan, A. J., Roberts, T. P., Ward, M. J., Zezas, A.
We present some preliminary results from new Chandra and XMM-Newton X-ray observations of the nearby barred spiral galaxy NGC1672. It shows dramatic nuclear and extra-nuclear star formation activity, including starburst regions located near each end
Externí odkaz:
http://arxiv.org/abs/0801.2356
Autor:
Clark, D. M., Eikenberry, S. S., Brandl, B. R., Wilson, J. C., Carson, J. C., Henderson, C. P., Hayward, T. L., Barry, D. J., Ptak, A. F., Colbert, E. J. M.
Publikováno v:
Astrophys.J.658:319-327,2007
We use deep J and Ks images of the Antennae (NGC 4038/9) obtained with WIRC on the Palomar 200-inch telescope, together with the Chandra X-ray source list of Zezas et al. (2002a), to search for IR counterparts to X-ray point sources. We establish an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612169
Publikováno v:
Astrophys.J.652:177-188,2006
We have carried out an extensive radio study with the Very Large Array on the Seyfert 1.5 galaxy Mrk 6 and imaged a spectacular radio structure in the source. The radio emission occurs on three different spatial scales, from ~7.5 kpc bubbles to ~1.5
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607603