Zobrazeno 1 - 10
of 1 020
pro vyhledávání: '"Rodriguez-Gil, P."'
A large number of white dwarf and donor masses in cataclysmic variables have been found via modelling the primary eclipse, a method that relies on untested assumptions. Recent measurements of the mass of the white dwarf in the cataclysmic variable GY
Externí odkaz:
http://arxiv.org/abs/2311.07192
Autor:
Rodríguez-Gil, Pablo, Corral-Santana, Jesús M., Elías-Rosa, Nancy, Gänsicke, Boris T., Hernanz, Margarita, Sala, Gloria
We present the first reliable determination of the orbital period of the recurrent nova V2487 Oph (Nova Oph 1998). We derived a value of $0.753 \pm 0.016$ d ($18.1 \pm 0.4$ h) from the radial velocity curve of the intense He II $\lambda$4686 emission
Externí odkaz:
http://arxiv.org/abs/2310.05877
Autor:
Álvarez-Hernández, A., Torres, M. A. P., Rodríguez-Gil, P., Shahbaz, T., Sánchez-Sierras, J., Acosta-Pulido, J. A., Jonker, P. G., Gazeas, K. D., Hakala, P., Corral-Santana, J. M.
We present a dynamical study of the eclipsing intermediate polar XY Ari based on time-resolved near-infrared spectroscopy obtained with the EMIR spectrograph on the 10.4-m Gran Telescopio Canarias. Using main sequence template spectra taken with the
Externí odkaz:
http://arxiv.org/abs/2304.08524
Autor:
Gómez-Llanos, V., García-Rojas, J., Morisset, C., Jones, D., Monteiro, H., Wesson, R., Boffin, H. M. J., Corradi, R. L. M., Pérez-Toledo, F., Rodríguez-Gil, P.
In this contribution, we present the results of a study on the high abundance discrepancy factor (ADF $\sim$ 10) planetary nebula (PN) NGC 6153 with MUSE. We have constructed flux maps for dozens of emission lines, that allowed us to build spatially
Externí odkaz:
http://arxiv.org/abs/2302.11525
Autor:
Izquierdo, Paula, Gänsicke, Boris T., Rodríguez-Gil, Pablo, Koester, Detlev, Toloza, Odette, Fusillo, Nicola P. Gentile, Pala, Anna F., Tremblay, Pier-Emmanuel
White dwarf photospheric parameters are usually obtained by means of spectroscopic or photometric analysis. These results are not always consistent with each other, with the published values often including just the statistical uncertainties. The dif
Externí odkaz:
http://arxiv.org/abs/2301.09670
Autor:
Burdge, Kevin B., El-Badry, Kareem, Marsh, Thomas R., Rappaport, Saul, Brown, Warren R., Caiazzo, Ilaria, Chakrabarty, Deepto, Dhillon, V. S., Fuller, Jim, Gänsicke, Boris T., Graham, Matthew J., Kara, Erin, Kulkarni, S. R., Littlefair, S. P., Mróz, Przemek, Rodríguez-Gil, Pablo, van Roestel, Jan, Simcoe, Robert A., Bellm, Eric C., Drake, Andrew J., Dekany, Richard G., Groom, Steven L., Laher, Russ R., Masci, Frank J., Riddle, Reed, Smith, Roger M., Prince, Thomas A.
Publikováno v:
Nature 610 467-471 (2022)
In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to achieve these short periods requires the donor star to have undergone sub
Externí odkaz:
http://arxiv.org/abs/2210.01809
Autor:
Rizo, I. V. Yanes, Torres, M. A. P., Casares, J., Motta, S. E., Muñoz-Darias, T., Rodríguez-Gil, P., Padilla, M. Armas, Jiménez-Ibarra, F., Jonker, P. G., Corral-Santana, J., Fender, R.
We present two contiguous nights of simultaneous time-resolved GTC spectroscopy and WHT photometry of the black hole X-ray transient XTE J1859+226, obtained in 2017 July during quiescence. Cross-correlation of the individual spectra against a late K-
Externí odkaz:
http://arxiv.org/abs/2209.10395
Autor:
Padilla, M. Armas, Rodríguez-Gil, P., Muñoz-Darias, T., Torres, M. A. P., Casares, J., Degenaar, N., Dhillon, V. S., Heinke, C. O., Littlefair, S. P., Marsh, T. R.
We present a detailed time-resolved photometric study of the ultra-compact X-ray binary candidate 4U 1812-12. The multicolor light curves obtained with HiPERCAM on the 10.4-m Gran Telescopio Canarias show an aprox 114 min modulation similar to a supe
Externí odkaz:
http://arxiv.org/abs/2205.04475
Autor:
Jones, David, Munday, James, Corradi, Romano, Rodríguez-Gil, Pablo, Boffin, Henri, Zak, Jiri, Sowicka, Paulina, Parsons, Steven, Dhillon, Vik, Littlefair, S., Marsh, T., Reindl, Nicole, García-Rojas, Jorge
We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou~5. Low-resolution spectra obtained during the primary eclipse -- to our knowledge the first isolated spectra
Externí odkaz:
http://arxiv.org/abs/2112.09505
Autor:
García-Rojas, Jorge, Morisset, Christophe, Jones, David, Wesson, Roger, Boffin, Henri M. J., Monteiro, Hektor, Corradi, Romano L. M., Rodríguez-Gil, Pablo
We present MUSE deep integral-field unit spectroscopy of three planetary nebulae(PNe) with high abundance discrepancy factors (ADF > 20): NGC 6778, M 1-42 and Hf 2-2. We have constructed flux maps for more than 40 emission lines, and use them to buil
Externí odkaz:
http://arxiv.org/abs/2112.00480