Zobrazeno 1 - 10
of 971
pro vyhledávání: '"Ibarra F"'
Autor:
Warwick, B., Lyman, J., Pursiainen, M., Coppejans, D. L., Galbany, L., Jones, G. T., Killestein, T. L., Kumar, A., Oates, S. R., Ackley, K., Anderson, J. P., Aryan, A., Breton, R. P., Chen, T. W., Clark, P., Dhillon, V. S., Dyer, M. J., Gal-Yam, A., Galloway, D. K., Gutiérrez, C. P., Gromadzki, M., Inserra, C., Jiménez-Ibarra, F., Kelsey, L., Kotak, R., Kravtsov, T., Kuncarayakti, H., Magee, M. R., Matilainen, K., Mattila, S., Müller-Bravo, T. E., Nicholl, M., Noysena, K., Nuttall, L. K., O'Brien, P., O'Neill, D., Pallé, E., Pessi, T., Petrushevska, T., Pignata, G., Pollacco, D., Ragosta, F., Ramsay, G., Sahu, A., Sahu, D. K., Singh, A., Sollerman, J., Stanway, E., Starling, R., Steeghs, D., Teja, R. S., Ulaczyk, K.
SN 2023tsz is a Type Ibn supernova (SNe Ibn) discovered in an extremely low-mass host. SNe Ibn are an uncommon subtype of stripped-envelope core-collapse SNe. They are characterised by narrow helium emission lines in their spectra and are believed to
Externí odkaz:
http://arxiv.org/abs/2409.14147
Autor:
Kennedy, M. R., Callanan, P., Garnavich, P. M., Breton, R. P., Brown, A. J., Segura, N. Castro, Dhillon, V. S., Dyer, M. J., Garbutt, J., Green, M. J., Hakala, P., Jiminez-Ibarra, F., Kerry, P., Fijma, S., Littlefair, S., Munday, J., Mason, P. A., Mata-Sanchez, D., Munoz-Darias, T., Parsons, S., Pelisoli, I., Sahman, D.
UW Coronae Borealis (UW CrB) is a low mass X-ray binary that shows both Type 1 X-ray and optical bursts, which typically last for 20 s. The system has a binary period of close to 2 hours and is thought to have a relatively high inclination due to the
Externí odkaz:
http://arxiv.org/abs/2408.06404
Autor:
Killestein, T. L., Kelsey, L., Wickens, E., Nuttall, L., Lyman, J., Krawczyk, C., Ackley, K., Dyer, M. J., Jiménez-Ibarra, F., Ulaczyk, K., O'Neill, D., Kumar, A., Steeghs, D., Galloway, D. K., Dhillon, V. S., O'Brien, P., Ramsay, G., Noysena, K., Kotak, R., Breton, R. P., Pallé, E., Pollacco, D., Awiphan, S., Belkin, S., Chote, P., Clark, P., Coppejans, D., Duffy, C., Eyles-Ferris, R., Godson, B., Gompertz, B., Graur, O., Irawati, P., Jarvis, D., Julakanti, Y., Kennedy, M. R., Kuncarayakti, H., Levan, A., Littlefair, S., Magee, M., Mandhai, S., Sánchez, D. Mata, Mattila, S., McCormac, J., Mullaney, J., Munday, J., Patel, M., Pursiainen, M., Rana, J., Sawangwit, U., Stanway, E., Starling, R., Warwick, B., Wiersema, K.
Time-domain astrophysics continues to grow rapidly, with the inception of new surveys drastically increasing data volumes. Democratised, distributed approaches to training sets for machine learning classifiers are crucial to make the most of this tor
Externí odkaz:
http://arxiv.org/abs/2406.02334
Autor:
Panizo-Espinar, G., Muñoz-Darias, T., Padilla, M. Armas, Jiménez-Ibarra, F., Sánchez, D. Mata, Yanes-Rizo, I. V., Alabarta, K., Baglio, M. C., Caruso, E., Casares, J., Corral-Santana, J. M., Lewis, F., Russell, D. M., Saikia, P., Sánchez-Sierras, J., Shahbaz, T., Torres, M. A. P., Vincentelli, F.
Swift J1357.2-0933 is a black hole transient of particular interest due to the optical, recurrent dips found during its first two outbursts (in 2011 and 2017), with no obvious X-ray equivalent. We present fast optical photometry during its two most r
Externí odkaz:
http://arxiv.org/abs/2311.03460
Autor:
Cúneo, V. A., Muñoz-Darias, T., Jiménez-Ibarra, F., Panizo-Espinar, G., Sánchez-Sierras, J., Padilla, M. Armas, Casares, J., Sánchez, D. Mata, Torres, M. A. P., Vincentelli, F., Ambrifi, A.
Publikováno v:
A&A 679, A85 (2023)
Accreting white dwarfs are known to show signatures of wind-type outflows in the ultraviolet. At optical wavelengths, however, wind detections have only been reported for a few sources. We present GTC-10.4m optical spectroscopy of four accreting whit
Externí odkaz:
http://arxiv.org/abs/2309.03275
Autor:
Vincentelli, F. M., Neilsen, J., Tetarenko, A. J., Cavecchi, Y., Segura, N. Castro, del Palacio, S., Eijnden, J. van den, Vasilopoulos, G., Altamirano, D., Padilla, M. Armas, Bailyn, C. D., Belloni, T., Buisson, D. J. K., Cuneo, V. A., Degenaar, N., Knigge, C., Long, K. S., Jimenez-Ibarra, F., Milburn, J., Darias, T. Muñoz, Arabaci, M. Ozbey, Remillard, R., Russell, T.
Accretion disks around compact objects are expected to enter an unstable phase at high luminosity. One instability may occur when the radiation pressure generated by accretion modifies the disk viscosity, resulting in the cyclic depletion and refilli
Externí odkaz:
http://arxiv.org/abs/2303.00020
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:
Casares, J., Muñoz-Darias, T., Torres, M. A. P., Sanchez, D. Mata, Britt, C. T., Padilla, M. Armas, Alvarez-Hernandez, A., Cuneo, V. A., Hernandez, J. I. Gonzalez, Jimenez-Ibarra, F., Jonker, P. G., Panizo-Espinar, G., Sanchez-Sierras, J., Yanes-Rizo, I. V.
We present a new method to derive binary inclinations in quiescent black hole (BH) X-ray transients (XRTs), based on the depth of the trough (T) from double-peaked Ha emission profiles arising in accretion discs. We find that the inclination angle (i
Externí odkaz:
http://arxiv.org/abs/2207.01628
Autor:
Panizo-Espinar, G., Padilla, M. Armas, Muñoz-Darias, T., Koljonen, K. I. I., Cúneo, V. A., Sánchez-Sierras, J., Sánchez, D. Mata, Casares, J., Corral-Santana, J., Fender, R. P., Jiménez-Ibarra, F., Ponti, G., Steeghs, D., Torres, M. A. P.
Publikováno v:
A&A 664, A100 (2022)
MAXI J1348-630 is a low mass X-ray binary discovered in 2019 during a bright outburst. During this event, the system sampled both hard and soft states following the standard evolution. We present multi-epoch optical and near-infrared spectroscopy obt
Externí odkaz:
http://arxiv.org/abs/2205.09128
Autor:
Segura, N. Castro, Knigge, C., Long, K. S., Altamirano, D., Padilla, M. Armas, Bailyn, C., Buckley, D. A. H., Buisson, D. J. K., Casares, J., Charles, P., Combi, J. A., Cúneo, V. A., Degenaar, N. D., del Palacio, S., Trigo, M. Díaz, Fender, R., Gandhi, P., Georganti, M., Gutiérrez, C., Santisteban, J. V. Hernandez, Jiménez-Ibarra, F., Matthews, J., Méndez, M., Middleton, M., Muñoz-Darias, T., Arabacı, M. Özbey, Pahari, M., Rhodes, L., Russell, T. D., Scaringi, S., Eijnden, J. van den, Vasilopoulos, G., Vincentelli, F. M., Wiseman, P.
All disc-accreting astrophysical objects produce powerful outflows. In binaries containing neutron stars (NS) or black holes, accretion often takes place during violent outbursts. The main disc wind signatures during these eruptions are blue-shifted
Externí odkaz:
http://arxiv.org/abs/2203.01372