Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Cellone, S. A."'
Autor:
Massaro, F., White, S. V., Paggi, A., Jimenez-Gallardo, A., Madrid, J. P., Mazzucchelli, C., Forman, W. R., Capetti, A., Leto, C., Garcia-Perez, A., Cheung, C. C., Chavushyan, V., Nesvadba, N. P. H., Andruchow, I., Pena-Herazo, H. A., Sani, E., Grossova, R., Reynaldi, V., Kraft, R. P., Balmaverde, B., Cellone, S.
Publikováno v:
The Astrophysical Journal Supplement Series, 268, 32 (2023)
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galaxies and quasars with similar selection criteria to those of the revise
Externí odkaz:
http://arxiv.org/abs/2309.10956
Autor:
Massaro, F., White, S. V., Garcia-Perez, A., Jimenez-Gallardo, A., Capetti, A., Cheung, C. C., Forman, W. R., Mazzucchelli, C., Paggi, A., Nesvadba, N. P. H., Madrid, J. P., Andruchow, I., Cellone, S., Pena-Herazo, H. A., Grossova, R., Balmaverde, B., Sani, E., Chavushyan, V., Kraft, R. P., Reynaldi, V., Leto, C.
Publikováno v:
The Astrophysical Journal Supplement Series, 265, 32 (2023)
Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridge catalog and its revised version (3CR). However, the largest fraction
Externí odkaz:
http://arxiv.org/abs/2308.10071
Autor:
Marchesini, E. J., Reynaldi, V., Vieyro, F., Saponara, J., Andruchow, I., López, I. E., Benaglia, P., Cellone, S. A., Masetti, N., Massaro, F., Peña-Herazo, H. A., Chavushyan, V., Combi, J. A., Acosta-Pulido, J. A., González, B. Agís, Castro-Segura, N.
Publikováno v:
A&A 670, A91 (2023)
Context. The gamma-ray emitting source WISE J141046.00+740511.2 has been associated with a Fermi-LAT detection by crossmatching with Swift/XRT data. It has shown all the canonical observational characteristics of a BL Lac source, including a power-la
Externí odkaz:
http://arxiv.org/abs/2211.08174
In a previous paper, we studied two statistical methods used to analyse the variability of active galactic nuclei (AGNs): the C and F statistics. Applying them to observed differential light-curves of 39 AGNs, we found that, even though the C criteri
Externí odkaz:
http://arxiv.org/abs/2008.08137
We present an extension of our previous research on the early-type galaxy population of the Antlia cluster (d ~ 35 Mpc), achieving a total coverage of ~ 2.6 deg x deg and performing surface photometry for ~300 galaxies, 130 of which are new uncatalog
Externí odkaz:
http://arxiv.org/abs/2007.05598
Autor:
von Essen, C., Wedemeyer, S., Sosa, M. S., Hjorth, M., Parkash, V., Freudenthal, J., Mallonn, M., Miculan, R. G., Zibecchi, L., Cellone, S., Torres, A. F.
From its discovery, the low density transiting Neptune HAT-P-26b showed a 2.1-sigma detection drift in its spectroscopic data, while photometric data showed a weak curvature in the timing residuals that required further follow-up observations to be c
Externí odkaz:
http://arxiv.org/abs/1904.06360
We present a characterization of CasPol, a dual-beam polarimeter mounted at the 2.15 meter Jorge Sahade Telescope, located at the Complejo Astron\'omico El Leoncito, Argentina. The telescope is one of the few available meter-sized optical telescopes
Externí odkaz:
http://arxiv.org/abs/1903.01475
Here we show the preliminary results of a study where there seems to be a bias effect in the size distributions of the detected low-surface brightness (LSB) galaxies in different environments. In this sense, more distant groups/clusters would lack sm
Externí odkaz:
http://arxiv.org/abs/1902.04554
Here we show the preliminary results of a photometric study of low surface brightness objects with $\mu_{g'}~\gtrsim~25$~mag/arcsec$^2$. These objects are present in several fields obtained with GEMINI-GMOS, in the central region of the Pegasus I gro
Externí odkaz:
http://arxiv.org/abs/1805.01828
Publikováno v:
A&A 603, A20 (2017)
Till date, only a handful exo-atmospheres have been well characterized, mostly by means of the transit method. Data show exoplanet atmospheres to be diverse. However, this is based on a small number of cases. Here we focus our study on the exo-atmosp
Externí odkaz:
http://arxiv.org/abs/1703.10647