Zobrazeno 1 - 10
of 552
pro vyhledávání: '"Bramich, D."'
Autor:
Asquini, L., Baglio, M. C., Campana, S., D'Avanzo, P., Zanon, A. Miraval, Alabarta, K., Russell, D. M., Bramich, D. M.
We present spectroscopy of the accreting X-ray binary and millisecond pulsar SAX J1808.4-3658. These observations are the first to be obtained during a reflaring phase. We collected spectroscopic data during the beginning of reflaring of the 2019 out
Externí odkaz:
http://arxiv.org/abs/2411.04828
Autor:
Street, R. A., Bachelet, E., Tsapras, Y., Hundertmark, M. P. G., Bozza, V., Bramich, D. M., Cassan, A., Dominik, M., Jaimes, R. Figuera, Horne, K., Mao, S., Saha, A., Wambsganss, J., Zang, Weicheng
The ROME/REA (Robotic Observations of Microlensing Events/Reactive Event Assessment) Survey was a Key Project at Las Cumbres Observatory (hereafter LCO) which continuously monitored 20 selected fields (3.76 sq.deg.) in the Galactic Bulge throughout t
Externí odkaz:
http://arxiv.org/abs/2403.05987
Autor:
Baglio, M. C., Zelati, F. Coti, Campana, S., Busquet, G., D'Avanzo, P., Giarratana, S., Giroletti, M., Ambrosino, F., Crespi, S., Zanon, A. Miraval, Hou, X., Li, D., Li, J., Wang, P., Russell, D. M., Torres, D. F., Alabarta, K., Casella, P., Covino, S., Bramich, D. M., de Martino, D., Méndez, M., Motta, S. E., Papitto, A., Saikia, P., Vincentelli, F.
Publikováno v:
A&A 677, A30 (2023)
Transitional millisecond pulsars are an emerging class of sources that link low-mass X-ray binaries to millisecond radio pulsars in binary systems. These pulsars alternate between a radio pulsar state and an active low-luminosity X-ray disc state. Du
Externí odkaz:
http://arxiv.org/abs/2305.14509
Autor:
Saikia, Payaswini, Russell, David M., Pirbhoy, Saarah F., Baglio, M. C., Bramich, D. M., Alabarta, Kevin, Lewis, Fraser, Charles, Phil
We present long-term (2012-2022) optical monitoring of the candidate black hole X-ray binary Swift J1910.2-0546 with the Faulkes Telescopes and Las Cumbres Observatory (LCO) network. Following its initial bright 2012 outburst, we find that the source
Externí odkaz:
http://arxiv.org/abs/2304.02046
Autor:
Bachelet, E., Tsapras, Y., Gould, Andrew, Street, R. A., Bennett, David P., Hundertmark, M. P. G., Bozza, V., Bramich, D. M., Cassan, A., Dominik, M., Horne, K., Mao, S., Saha, A., Wambsganss, J., Zang, Weicheng, Abe, Fumio, Barry, Richard, Bhattacharya, Aparna, Bond, Ian A., Fukui, Akihiko, Fujii, Hirosane, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Koshimoto, Naoki, Matsubara, Yutaka, Matsumoto, Sho, Miyazaki, Shota, Muraki, Yasushi, Olmschenk, Greg, Ranc, Clément, Okamura, Arisa, Rattenbury, Nicholas J., Satoh, Yuki, Sumi, Takahiro, Suzuki, Daisuke, Silva, Stela Ishitani, Toda, Taiga, Tristram, Paul . J., Vandorou, Aikaterini, Yama, Hibiki, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Hwang, Kyu-Ha, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Yee, Jennifer C., Cha, Sang-Mok, Kim, Dong-Jin, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Udalski, Andrzej, Mróz, Przemek, Poleski, Rados law, Skowron, Jan, Szymański, Micha l K., Soszyński, Igor, Pietrukowicz, Pawe l, Kozlowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Gromadzki, Mariusz
We report on the observations, analysis and interpretation of the microlensing event MOA-2019- BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustic
Externí odkaz:
http://arxiv.org/abs/2205.07522
Autor:
Saikia, Payaswini, Russell, David M., Baglio, M. C., Bramich, D. M., Casella, Piergiorgio, Trigo, M. Diaz, Gandhi, Poshak, Jiang, Jiachen, Maccarone, Thomas, Soria, Roberto, Noori, Hind Al, Yazeedi, Aisha Al, Alabarta, Kevin, Belloni, Tomaso, Bel, Marion Cadolle, Ceccobello, Chiara, Corbel, Stephane, Fender, Rob, Gallo, Elena, Homan, Jeroen, Koljonen, Karri, Lewis, Fraser, Markoff, Sera B., Miller-Jones, James C. A., Rodriguez, Jerome, Russell, Thomas D., Shahbaz, Tariq, Sivakoff, Gregory R., Testa, Vincenzo, Tetarenko, Alexandra J.
We present a detailed study of the evolution of the Galactic black hole transient GRS 1716-249 during its 2016-2017 outburst at optical (Las Cumbres Observatory), mid-infrared (Very Large Telescope), near-infrared (Rapid Eye Mount telescope), and ult
Externí odkaz:
http://arxiv.org/abs/2205.04452
Autor:
Baglio, M. C., Saikia, P., Russell, D. M., Homan, J., Waterval, S., Bramich, D. M., Campana, S., Lewis, F., Eijnden, J. Van den, Alabarta, K., Covino, S., D'Avanzo, P., Goldoni, P., Masetti, N., Muñoz-Darias, T.
We report on a long-term optical monitoring of the neutron star X-ray binary Centaurus X-4 performed during the last 13.5 years. This source has been in quiescence since its outburst in 1979. Our monitoring reveals the overall evolution of the accret
Externí odkaz:
http://arxiv.org/abs/2204.00030
Autor:
Hitchcock, James A., Bramich, D. M., Foreman-Mackey, Daniel, Hogg, David W., Hundertmark, Markus
In traditional lucky imaging (TLI), many consecutive images of the same scene are taken with a high frame-rate camera, and all but the sharpest images are discarded before constructing the final shift-and-add image. Here we present an alternative ima
Externí odkaz:
http://arxiv.org/abs/2202.04686
Autor:
Kondo, Iona, Yee, Jennifer C., Bennett, David P., Sumi, Takahiro, Koshimoto, Naoki, Bond, Ian A., Gould, Andrew, Udalski, Andrzej, Shvartzvald, Yossi, Jung, Youn Kil, Zang, Weicheng, Bozza, Valerio, Bachelet, Etienne, Hundertmark, Markus P. G., Rattenbury, Nicholas J., Abe, F., Barry, R., Bhattacharya, A., Donachie, M., Fukui, A., Fujii, H., Hirao, Y., Silva, S. Ishitani, Itow, Y., Kirikawa, R., Li, M. C. A., Matsubara, Y., Miyazaki, S., Muraki, Y., Olmschenk, G., Ranc, C., Satoh, Y., Shoji, H., Suzuki, D., Tanaka, Y., Tristram, P. J., Yamawaki, T., Yonehara, A., Mróz, P., Poleski, R., Skowron, J., Szymański, M. K., Soszyński, I., Kozłowski, S., Ulaczyk, P. Pietrukowicz K., Rybicki, K. A., Iwanek, P., Wrona, M., Albrow, M. D., Chung, S. -J., Han, C., Hwang, K. -H., Kim, H. -W., Shin, I. -G., Cha, S. -M., Kim, D. -J., Kim, S. -L., Lee, C. -U., Lee, D. -J., Lee, Y., Park, B. -G., Pogge, R. W., Ryu, Y. -H., Beichman, C. A., Bryden, G., Novati, S. Calchi, Carey, S., Gaudi, B. S., Henderson, C. B., Zhu, W., Maoz, D., Penny, M. T., Dominik, M., Jørgensen, U. G., n}}a, P. Longa-Pe{\~{, Peixinho, N., Sajadian, S., Skottfelt, J., Snodgrass, C., Tregloan-Reed, J., Burgdorf, M. J., Campbell-White, J., Dib, S., Fujii, Y. I., Hinse, T. C., Khalouei, E., Rahvar, S., Rabus, M., Southworth, J., Tsapras, Y., Street, R. A., Bramich, D. M., Cassan, A., Horne, K., Wambsganss, J., Mao, S., Saha, A.
We report the analysis of planetary microlensing event OGLE-2018-BLG-1185, which was observed by a large number of ground-based telescopes and by the $Spitzer$ Space Telescope. The ground-based light curve indicates a low planet-host star mass ratio
Externí odkaz:
http://arxiv.org/abs/2104.02157
Autor:
Ambrosino, F., Zanon, A. Miraval, Papitto, A., Zelati, F. Coti, Campana, S., D'Avanzo, P., Stella, L., Di Salvo, T., Burderi, L., Casella, P., Sanna, A., de Martino, D., Cadelano, M., Ghedina, A., Leone, F., Meddi, F., Cretaro, P., Baglio, M. C., Poretti, E., Mignani, R. P., Torres, D. F., Israel, G. L., Cecconi, M., Russell, D. M., Gomez, M. D. Gonzalez, Rodriguez, A. L. Riverol, Ventura, H. Perez, Diaz, M. Hernandez, Juan, J. J. San, Bramich, D. M., Lewis, F.
Publikováno v:
Nature Astronomy (2021)
Millisecond spinning, low magnetic field neutron stars are believed to attain their fast rotation in a 0.1-1 Gyr-long phase during which they accrete matter endowed with angular momentum from a low-mass companion star. Despite extensive searches, coh
Externí odkaz:
http://arxiv.org/abs/2102.11704