Zobrazeno 1 - 10
of 1 258
pro vyhledávání: '"Sandoval, L."'
Autor:
Pattie, E. C., Maccarone, T. J., Tetarenko, A. J., Miller-Jones, J. C. A., Marcano, M. Pichardo, Sandoval, L. E. Rivera
Ser X-1 is a low mass neutron star X-ray binary and has been persistently accreting since its discovery in the 1960s. It has always been observed to be in a soft spectral state and has never showed substantial long-term X-ray variability. Ser X-1 has
Externí odkaz:
http://arxiv.org/abs/2406.06725
Autor:
Migliori, G., Margutti, R., Metzger, B. D., Chornock, R., Vignali, C., Brethauer, D., Coppejans, D. L., Maccarone, T., Sandoval, L. Rivera, Bright, J. S., Laskar, T., Milisavljevic, D., Berger, E., Nayana, J.
We present the first deep X-ray observations of a luminous FBOT AT2018cow, at $\sim3.7\,\rm{yr}$ since discovery, together with the re-analysis of the observation at $\delta t\sim 220$ d. X-ray emission is significantly detected at a location consist
Externí odkaz:
http://arxiv.org/abs/2309.15678
Autor:
Mereghetti, S., La Palombara, N., Kupfer, T., Marsh, T. R., Copperwheat, C. M., Deshmukh, K., Esposito, P., Maccarone, T., Pintore, F., Rigoselli, M., Sandoval, L. Rivera, Tiengo, A.
ZTF J213056.71+442046.5 is the prototype of a small class of recently discovered compact binaries composed of a white dwarf and a hot subdwarf that fills its Roche-lobe. Its orbital period of only 39 min is the shortest known for the objects in this
Externí odkaz:
http://arxiv.org/abs/2204.09127
Autor:
Sandoval, L. E. Rivera, Heinke, C. O., Hameury, J. M., Cavecchi, Y., Vanmunster, T., Tordai, T., Romanov, F.
ASASSN-21au is an ultracompact accreting white dwarf binary (AM CVn) with a period of approx. 58 min. Using multiwavelength observations of the system, we discovered a dichotomy in the behavior of outbursts in AM CVns. The binary showed an initial br
Externí odkaz:
http://arxiv.org/abs/2107.11006
Autor:
Mereghetti, S., Balman, S., Caballero-Garcia, M., Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, P., Markowitz, A., Osborne, J. P., Pian, E., Sandoval, L. Rivera, Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozzo, E., Burderi, L., Campana, S., Casella, P., D'Aì, A., D'Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Gotz, D., Grinberg, V., Guidorzi, C., Hudec, R., Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P., Kong, A. K. H., Krumpe, M., Kumar, P., Manousakis, A., Marino, A., Martin-Carrillo, A., Mignani, R., Miniutti, G., Mundell, C. G., Mukai, K., Nucita, A. A., O'Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, F., Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodriguez, J., Saha, T., Sanna, A., Santangelo, A., Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., Zhang, B.
THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Universe through the observation of gamma-ray bursts and to study the grav
Externí odkaz:
http://arxiv.org/abs/2104.09533
Autor:
Marcano, Manuel Pichardo, Sandoval, L. E. Rivera, Maccarone, Thomas J., Zhao, Yue, Heinke, Craig O.
We report optical modulation of the companion to the X-ray source U18 in the globular cluster NGC 6397. U18, with combined evidence from radio and X-ray measurements, is a strong candidate as the second redback in this cluster, initially missed in pu
Externí odkaz:
http://arxiv.org/abs/2103.03989
We report on multi-wavelength observations during quiescence and of the first detected outburst of the ~60 min orbital period AM CVn SDSS J113732+405458. Using X-ray and UV observations we determined an upper limit duration of the event of about one
Externí odkaz:
http://arxiv.org/abs/2012.10356
Publikováno v:
In IFAC PapersOnLine 2024 58(14):384-389
Autor:
Bahramian, A., Heinke, C. O., Kennea, J. A., Maccarone, T. J., Evans, P. A., Wijnands, R., Degenaar, N., Zand, J. J. M. in't, Shaw, A. W., Sandoval, L. E. Rivera, McClure, S., Tetarenko, A. J., Strader, J., Kuulkers, E., Sivakoff, G. R.
Very faint X-ray transients (VFXTs) are X-ray transients with peak X-ray luminosities ($L_X$) of $L_X\lesssim10^{36}$ erg/s, which are not well-understood. We carried out a survey of 16 square degrees of the Galactic Bulge with the Swift Observatory,
Externí odkaz:
http://arxiv.org/abs/2009.10322
SDSS J080710+485259 is the longest period outbursting ultracompact white dwarf binary. Its first ever detected superoutburst started in November of 2018 and lasted for a year, the longest detected so far for any short orbital period accreting white d
Externí odkaz:
http://arxiv.org/abs/2008.09242