Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Mejía Restrepo, J."'
Autor:
Melo, A., Motta, V., Mejía-Restrepo, J., Assef, R. J., Godoy, N., Mediavilla, E., Falco, E., Kochanek, C. S., Ávila-Vera, F., Jerez, R.
Publikováno v:
A&A 680, A51 (2023)
We estimate black hole masses (M$_{\rm BH}$) for 14 gravitationally lensed quasars using the Balmer lines along with estimates based on MgII and CIV emission lines for four and two of them, respectively. We compare with results obtained for other len
Externí odkaz:
http://arxiv.org/abs/2306.03472
Autor:
F., Ricci, E., Treister, E., Bauer F., E., Mejía-Restrepo J., M., Koss, S., den Brok, M., Baloković, R., Bär, P., Bessiere, T., Caglar, F., Harrison, K., Ichikawa, D., Kakkad, I., Lamperti, R., Mushotzky, K., Oh, C., Powell M., C., Privon G., C., Ricci, R., Riffel, F., Rojas A., E., Sani, L., Smith K., D., Stern, B., Trakhtenbrot, M., Urry C., S., Veilleux
Virial black hole mass ($M_{BH}$) determination directly involves knowing the broad line region (BLR) clouds velocity distribution, their distance from the central supermassive black hole ($R_{BLR}$) and the virial factor ($f$). Understanding whether
Externí odkaz:
http://arxiv.org/abs/2111.13720
Autor:
Melo, A., Motta, V., Godoy, N., Mejia-Restrepo, J., Assef, Roberto J., Mediavilla, E., Falco, E., Ávila-Vera, F., Jerez, R.
Publikováno v:
A&A 656, A108 (2021)
The quadruple lensed system WGD2038-4008 was recently discovered with the help of new techniques and observations. Even though black hole mass has been estimated for lensed quasars, it has been calculated mostly for one broad emission line of one ima
Externí odkaz:
http://arxiv.org/abs/2110.01575
Autor:
Mediavilla, E., JimÉnez-Vicente, J., MejÍa-Restrepo, J., Motta, V., Falco, E., MuÑoz, J. A., Fian, C., Guerras, E.
We test the recently proposed (Mediavilla et al. 2018) black hole mass scaling relationship based on the redshift {with respect to the quasar's rest frame} of the Fe III$\lambda\lambda$2039-2113 line blend. To this end, we fit this feature in the spe
Externí odkaz:
http://arxiv.org/abs/1907.04026
Autor:
Paliya, Vaidehi S., Koss, M., Trakhtenbrot, B., Ricci, C., Oh, K., Ajello, M., Stern, D., Powell, M. C., Urry, C. M., Harrison, F., Lamperti, I., Mushotzky, R., Marcotulli, L., Mejía-Restrepo, J., Hartmann, D.
Publikováno v:
2019ApJ...881..154P
The recently released 105-month {\it Swift}-Burst Alert Telescope (BAT) all-sky hard X-ray survey catalog presents an opportunity to study astrophysical objects detected in the deepest look at the entire hard X-ray (14$-$195 keV) sky. Here we report
Externí odkaz:
http://arxiv.org/abs/1907.01082
Autor:
Sánchez-Sáez, P., Lira, P., Mejía-Restrepo, J., Ho, L. C., Arévalo, P., Kim, M., Cartier, R., Coppi, P.
We present our statistical analysis of the connection between active galactic nuclei (AGN) variability and physical properties of the central supermassive black hole (SMBH). We constructed optical light curves using data from the QUEST-La Silla AGN v
Externí odkaz:
http://arxiv.org/abs/1808.00967
In large optical survey at high redshifts ($z>2$), the CIV broad emission line is the most practical alternative to estimate the mass ($M_{\text{BH}}$) of active super-massive black holes (SMBHs). However, mass determinations obtained with this line
Externí odkaz:
http://arxiv.org/abs/1805.00942
Publikováno v:
Nature Astronomy 2, 63-68. 2017
Supermassive black holes reside in the nuclei of most galaxies. Accurately determining their mass is key to understand how the population evolves over time and how the black holes relate to their host galaxies. Beyond the local universe, the mass is
Externí odkaz:
http://arxiv.org/abs/1709.05345
Autor:
López Amaya, J.E., Mejía Restrepo, J., Nicolau Molina, C., Zuluaga Santamaría, A., Mazzaro, M.
Publikováno v:
In Radiología (English Edition) 2010 52(4):311-320
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