Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Fian, C."'
Autor:
Fian, C., Jiménez-Vicente, J., Mediavilla, E., Muñoz, J. A., Chelouche, D., Kaspi, S., Forés-Toribio, R.
We introduce a novel method to derive rotation curves with light-day spatial resolution of the inner regions of lensed quasars. We aim to probe the kinematics of the inner part of the broad-line region (BLR) by resolving the microlensing response - a
Externí odkaz:
http://arxiv.org/abs/2407.13381
Autor:
Fian, C., Muñoz, J. A., Jiménez-Vicente, J., Mediavilla, E., Chelouche, D., Kaspi, S., Forés-Toribio, R.
We aim to unveil the structure of the continuum and broad-emission line (BEL) emitting regions in the gravitationally lensed quasar SDSS J1339+1310 by examining the distinct signatures of microlensing present in this system. Our study involves a comp
Externí odkaz:
http://arxiv.org/abs/2407.05942
Autor:
Forés-Toribio, R., Mediavilla, E., Muñoz, J. A., Jiménez-Vicente, J., Fian, C., del Burgo, C.
We propose and discuss a new experimental approach to measure the centroid shift induced by gravitational microlensing in the images of lensed quasars (astrometric microlensing). Our strategy is based on taking the photocenter of a region in the quas
Externí odkaz:
http://arxiv.org/abs/2406.11609
Autor:
Fian, C., Muñoz, J. A., Forés-Toribio, R., Mediavilla, E., Jiménez-Vicente, J., Chelouche, D., Kaspi, S., Richards, G. T.
We aim to reveal the sizes of the continuum and broad emission line (BEL) emitting regions in the gravitationally lensed quasar SDSS J1004+4112 by analyzing the unique signatures of microlensing in this system. Through a comprehensive analysis of 20
Externí odkaz:
http://arxiv.org/abs/2310.11212
Publikováno v:
A&A 677, A94 (2023)
We investigate the discrepancy between the predicted size of accretion disks (ADs) in quasars and the observed sizes as deduced from gravitational microlensing studies. Specifically, we aim to understand whether the discrepancy is due to an inadequac
Externí odkaz:
http://arxiv.org/abs/2307.14824
Autor:
Fian, C., Muñoz, J. A., Mediavilla, E., Jiménez-Vicente, J., Motta, V., Chelouche, D., Wurzer, A., Hanslmeier, A., Rojas, K.
Publikováno v:
A&A 678, A108 (2023)
Our aim is to examine the size, kinematics, and geometry of the broad-line region (BLR) in the double-lensed quasar Q 0957+561 by analyzing the impact of microlensing on various rest-frame ultraviolet broad-emission lines (BELs). We explore the influ
Externí odkaz:
http://arxiv.org/abs/2307.02914
Publikováno v:
A&A 672, A132 (2023)
We report the results from a photometric reverberation mapping campaign carried out with the C18 telescope at the Wise Observatory from 2019 to 2020, targeting the active galactic nucleus (AGN) MCG 08-11-011. The monitoring was conducted on a daily b
Externí odkaz:
http://arxiv.org/abs/2302.08402
Publikováno v:
A&A 659, A13 (2022)
We present the results of an intensive six-month optical continuum reverberation mapping campaign of the Seyfert 1 galaxy PG 2130+099 at redshift z=0.063. The ground-based photometric monitoring was conducted on a daily basis with the robotic 46cm te
Externí odkaz:
http://arxiv.org/abs/2111.07385
Autor:
Fian, C., Mediavilla, E., Jiménez-Vicente, J., Motta, V., Muñoz, J. A., Chelouche, D., Goméz-Alvarez, P., Rojas, K., Hanslmeier, A.
Publikováno v:
A&A 654, A70 (2021)
We aim to use signatures of microlensing induced by stars in the foreground lens galaxy to infer the size of the accretion disk in the gravitationally lensed quasar Q 0957+561. The long-term photometric monitoring of this system (which so far has pro
Externí odkaz:
http://arxiv.org/abs/2108.05212
Autor:
Fian, C., Mediavilla, E., Jiménez-Vicente, J., Motta, V., Muñoz, J. A., Chelouche, D., Hanslmeier, A.
Publikováno v:
A&A 667, A67 (2022)
We intend to use the impact of microlensing on the Fe III emission line blend along with a measure of its gravitational redshift to estimate the mass of the quasar's central supermassive black hole (SMBH). We fit the Fe III feature in multiple spectr
Externí odkaz:
http://arxiv.org/abs/2107.11791