Zobrazeno 1 - 10
of 116
pro vyhledávání: '"MacLeod, C. L."'
Autor:
Ricci, C., Loewenstein, M., Kara, E., Remillard, R., Trakhtenbrot, B., Arcavi, I., Gendreau, K. C., Arzoumanian, Z., Fabian, A. C., Li, R., Ho, L. C., MacLeod, C. L., Cackett, E., Altamirano, D., Gandhi, P., Kosec, P., Pasham, D., Steiner, J., Chan, C. -H.
1ES 1927+654 is a nearby active galactic nucleus (AGN) which underwent a changing-look event in early 2018, developing prominent broad Balmer lines which were absent in previous observations. We have followed up this object in the X-rays with an ongo
Externí odkaz:
http://arxiv.org/abs/2102.05666
Autor:
Ricci, C., Kara, E., Loewenstein, M., Trakhtenbrot, B., Arcavi, I., Remillard, R., Fabian, A. C., Gendreau, K. C., Arzoumanian, Z., Li, R., Ho, L. C., MacLeod, C. L., Cackett, E., Altamirano, D., Gandhi, P., Kosec, P., Pasham, D., Steiner, J., Chan, C. -H.
We present the drastic transformation of the X-ray properties of the active galactic nucleus 1ES 1927+654, following a changing-look event. After the optical/UV outburst the power-law component, produced in the X-ray corona, disappeared, and the spec
Externí odkaz:
http://arxiv.org/abs/2007.07275
Autor:
McGraw, S. M., Brandt, W. N., Grier, C. J., Ak, N. Filiz, Hall, P. B., Schneider, D. P., Anderson, S. F., Green, P. J., Hutchinson, T. A., Macleod, C. L., Vivek, M.
We investigate broad absorption line (BAL) disappearance and emergence using a 470 BAL-quasar sample over < 0.10-5.25 rest-frame years with at least three spectroscopic epochs for each quasar from the Sloan Digital Sky Survey. We identify 14 disappea
Externí odkaz:
http://arxiv.org/abs/1705.03019
Autor:
Hanslmeier, A., Brajsa, R., Calogovic, J., Vrsnak, B., Ruzdjak, D., Steinhilber, F., MacLeod, C. L., Ivezic, Z., Skokic, I.
Context. The variations of solar activity over long time intervals using a solar activity reconstruction based on the cosmogenic radionuclide 10Be measured in polar ice cores are studied. Methods. By applying methods of nonlinear dynamics, the solar
Externí odkaz:
http://arxiv.org/abs/1402.2776
Autor:
MacLeod, C. L., Brooks, K., Ivezic, Z., Kochanek, C. S., Gibson, R., Meisner, A., Kozlowski, S., Sesar, B., Becker, A. C., de Vries, W.
Publikováno v:
2011, ApJ, 728, 26
We develop a method for separating quasars from other variable point sources using SDSS Stripe 82 light curve data for ~10,000 variable objects. To statistically describe quasar variability, we use a damped random walk model parametrized by a damping
Externí odkaz:
http://arxiv.org/abs/1009.2081
Autor:
MacLeod, C. L., Ivezić, Ž., Kochanek, C. S., Kozłowski, S., Kelly, B. C., Bullock, E., Kimball, A., Sesar, B., Westman, D., Brooks, K., Gibson, R., Becker, A. C., de Vries, W. H.
Publikováno v:
Astrophysical Journal 721 (2010) 1014-1033
We model the time variability of ~9,000 spectroscopically confirmed quasars in SDSS Stripe 82 as a damped random walk. Using 2.7 million photometric measurements collected over 10 years, we confirm the results of Kelly et al. (2009) and Koz{\l}owski
Externí odkaz:
http://arxiv.org/abs/1004.0276
Publikováno v:
Estuaries, 1997 Sep 01. 20(3), 494-503.
Externí odkaz:
https://www.jstor.org/stable/1352609
Autor:
MacLeod, C. L., Lester, J. N.
Publikováno v:
Estuaries, 1997 Sep 01. 20(3), 483-493.
Externí odkaz:
https://www.jstor.org/stable/1352608
Autor:
Hanslmeier, A., Brajša, R., Čalogović, J., Vršnak, B., Ruždjak, D., Steinhilber, F., MacLeod, C. L., Ivezić, Ž., Skokić, I.
Publikováno v:
Astronomy & Astrophysics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=fp7_spa_____::166736ddda4441d145b6b0f1bf3f4b2a
We demonstrate that three integral membrane receptors of mammals--the ecotropic retroviral leukemia receptor (ERR), the human retroviral receptor (HRR), and the T-cell early activator (Tea)--are homologous to a family of transporters specific for ami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1b794b389d4f3af6bf939bd674ba2ee1
https://europepmc.org/articles/PMC2142299/
https://europepmc.org/articles/PMC2142299/