Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Garde, O."'
Autor:
Merc, J., Gális, R., Velez, P., Charbonnel, S., Garde, O., Dû, P. Le, Mulato, L., Petit, T., Bohlsen, T., Curry, S., Love, T., Barker, H.
V618 Sgr was previously classified as an R CrB-type variable and later as a possible symbiotic star. Our study aims to analyse the nature of this target, which is currently undergoing significant brightening in properties similar to those of known sy
Externí odkaz:
http://arxiv.org/abs/2305.03537
Autor:
Murphy-Glaysher, F. J., Darnley, M. J., Harvey, É. J., Newsam, A. M., Page, K. L., Starrfield, S., Wagner, R. M., Woodward, C. E., Terndrup, D. M., Kafka, S., Heras, T. Arranz, Berardi, P., Bertrand, E., Biernikowicz, R., Boussin, C., Boyd, D., Buchet, Y., Bundas, M., Coulter, D., Dejean, D., Diepvens, A., Dvorak, S., Edlin, J., Eenmae, T., Eggenstein, H., Fournier, R., Garde, O., Gout, J., Janzen, D., Jordanov, P., Kiiskinen, H., Lane, D., Larochelle, R., Leadbeater, R., Mankel, D., Martineau, G., Miller, I., Modic, R., Montier, J., Aimar, M. Morales, Muyllaert, E., Nogues, R. Naves, O'Keeffe, D., Oksanen, A., Pyatnytskyy, M., Rast, R., Rodgers, B., Perez, D. Rodriguez, Schorr, F., Schwendeman, E., Shadick, S., Sharpe, S., Alfaro, F. Soldán, Sove, T., Stone, G., Tordai, T., Venne, R., Vollmann, W., Vrastak, M., Wenzel, K.
V392 Persei is a known dwarf nova (DN) that underwent a classical nova eruption in 2018. Here we report ground-based optical, Swift UV and X-ray, and Fermi-LAT \gamma-ray observations following the eruption for almost three years. V392 Per is one of
Externí odkaz:
http://arxiv.org/abs/2206.03443
Autor:
Skopal, A., Shugarov, S. Yu., Munari, U., Masetti, N., Marchesini, E., Komzik, R. M., Kundra, E., Shagatova, N., Tarasova, T. N., Buil, C., Boussin, C., Shenavrin, V. I., Hambsch, F. -J., Dallaporta, S., Frigo, A., Garde, O., Zubareva, A., Dubovský, P. A., Kroll, P.
Publikováno v:
A&A 636, A77 (2020)
The star V426 Sge (HBHA~1704-05), originally classified as an emission-line object and a semi-regular variable, brightened at the beginning of August 2018, showing signatures of a symbiotic star outburst. We aim to confirm the nature of V426 Sge as a
Externí odkaz:
http://arxiv.org/abs/2003.10135
We present the results of spectroscopy campaigns for planetary nebula candidates, where we have identified four objects as Seyfert galaxies. All observations have been carried out by a group of French amateur astronomers. During the campaigns at the
Externí odkaz:
http://arxiv.org/abs/1906.09612
Autor:
Naze, Y., Rauw, G., Flo, J . Guarro, De Bruin, A., Garde, O., Thizy, O., Houpert, F., Pollmann, E., Sawicki, C. J., Leonardi, M., Moll, M., Quandt, C. T., Berardi, P., Lester, T., Fosanelli, P., Favaro, A., Terry, J. N., Graham, K., Mauclaire, B., Bohlsen, T., Pujol, M., Bertrand, E., Bryssinck, E., Desnoux, V., Lailly, P., Montier, J., Mannucci, M., Montigiani, N., Stiewing, A., Daglen, J., Kreider, C., Lemoult, T., Rodda, T.
Publikováno v:
New Astronomy (vol 73, id 101279, 2019)
Some Be stars display important variability of the strength of the emission lines formed in their disk. This is notably the case of pi Aqr. We present here the recent evolution of the Be disk in this system thanks to spectra collected by amateur spec
Externí odkaz:
http://arxiv.org/abs/1906.09030
Autor:
Gillet, D., Mauclaire, B., Garrel, T., Lemoult, T., Mathias, Ph., de France, T., Devaux, J-S., Boussier, H., Verilhac, D., Brabant, G., Desbordes, J., Garde, O., Collaboration, the GRRR
Publikováno v:
A&A 607, A51 (2017)
The so-called H$\alpha$ third emission occurs around pulsation phase $\varphi$=0.30. It has been observed for the first time in 2011 in some RR Lyrae stars. The emission intensity is very weak, and its profile is a tiny persistent hump in the red sid
Externí odkaz:
http://arxiv.org/abs/1709.03556
Autor:
Skopal, A., Shugarov, S. Yu., Sekeráš, M., Wolf, M., Tarasova, T. N., Teyssier, F., Fujii, M., Guarro, J., Garde, O., Graham, K., Lester, T., Bouttard, V., Lemoult, T., Sollecchia, U., Montier, J., Boyd, D.
Publikováno v:
A&A 604, A48 (2017)
AG Peg is known as the slowest symbiotic nova, which experienced its nova-like outburst around 1850. After 165 years, during June of 2015, it erupted again showing characteristics of the Z And-type outburst. The primary objective is to determine basi
Externí odkaz:
http://arxiv.org/abs/1705.00076
Autor:
Skopal, A., Drechsel, H., Tarasova, T. N., Kato, T., Fujii, M., Teyssier, F., Garde, O., Guarro, J., Edlin, J., Buil, C., Antao, D., Terry, J. N., Lemoult, T., Charbonnel, S., Bohlsen, T., Favaro, A., Graham, K.
Publikováno v:
A&A 569, A112 (2014)
We determine the temporal evolution of the luminosity L(WD), radius R(WD) and effective temperature Teff of the white dwarf (WD) pseudophotosphere of V339 Del from its discovery to around day 40. Another main objective was studying the ionization str
Externí odkaz:
http://arxiv.org/abs/1407.8212
Autor:
Zharikov, S. V., Miroshnichenko, A. S., Pollmann, E., Danford, S., Bjorkman, K. S., Morrison, N. D., Favaro, A., Flo, J. Guarro, Terry, J. N., Desnoux, V., Garrel, T., Martineau, G., Buchet, Y., Ubaud, S., Mauclaire, B., Kalbermatten, H., Buil, C., Sawicki, C. J., Blank, T., Garde, O.
Publikováno v:
A&A 560, A30 (2013)
The work is aimed at a study of the circumstellar disk of the bright classical binary Be star {\pi} Aqr. We analysed variations of a double-peaked profile of the H{\alpha} emission line in the spectrum of {\pi} Aqr that was observed in many phases du
Externí odkaz:
http://arxiv.org/abs/1310.6499
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