Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Ashley, Michael C. B."'
Autor:
Karambelkar, Viraj R., Kasliwal, Mansi M., Tisserand, Patrick, Anand, Shreya, Ashley, Michael C. B., Bildsten, Lars, Clayton, Geoffrey C., Crawford, Courtney C., De, Kishalay, Earley, Nicholas, Hankins, Matthew J., Hall, Xander, Lamberts, Astrid, Lau, Ryan M., McKenna, Dan, Moore, Anna, Ofek, Eran O., Smith, Roger M., Soria, Roberto, Soon, Jamie, Travouillon, Tony
We present results from a systematic infrared (IR) census of R Coronae Borealis (RCB) stars in the Milky Way, using data from the Palomar Gattini IR (PGIR) survey. R Coronae Borealis stars are dusty, erratic variable stars presumably formed from the
Externí odkaz:
http://arxiv.org/abs/2407.08653
Autor:
Murakawa, Shion, De, Kishalay, Ashley, Michael C. B., Earley, Nicholas, Hillenbrand, Lynne A., Kasliwal, Mansi M., Lau, Ryan M., Moore, Anna M., Sokoloski, J. L., Soria, Roberto
Palomar Gattini-IR is a wide-field, synoptic infrared time domain survey covering $\approx 15000$ sq. deg. of the sky at $\approx 1-3$ night cadence to a depth of $J\approx 13.0$ and $\approx 14.9$ Vega mag in and outside the Galactic plane, respecti
Externí odkaz:
http://arxiv.org/abs/2406.01720
Autor:
Suresh, Aswin, Karambelkar, Viraj, Kasliwal, Mansi M., Ashley, Michael C. B., De, Kishalay, Hankins, Matthew J., Moore, Anna M., Soon, Jamie, Soria, Roberto, Travouillon, Tony, Truong, Kayton K.
Stars in the Asymptotic Giant Branch (AGB) phase, dominated by low to intermediate-mass stars in the late stage of evolution, undergo periodic pulsations, with periods of several hundred days, earning them the name Long Period Variables (LPVs). These
Externí odkaz:
http://arxiv.org/abs/2402.08000
Autor:
Carvalho, Adolfo S., Hillenbrand, Lynne A., Hambsch, Franz-Josef, Dvorak, Shawn, Sitko, Michael, Russell, Ray W., Hammond, Victoria, Connelley, Michael, Ashley, Michael C. B., Hankins, Matthew J.
We study the evolution of the FU Ori object V960 Mon since its outburst, using available multi-wavelength photometric time series over 8 years, complemented by several epochs of moderate-dispersion spectrophotometry. We find that the source fading ca
Externí odkaz:
http://arxiv.org/abs/2306.15107
Autor:
Hou, Xu, Hu, Yi, Du, Fujia, Ashley, Michael C. B., Pei, Chong, Shang, Zhaohui, Ma, Bin, Wang, Erpeng, Huang, Kang
Atmospheric seeing is one of the most important parameters for evaluating and monitoring an astronomical site. Moreover, being able to predict the seeing in advance can guide observing decisions and significantly improve the efficiency of telescopes.
Externí odkaz:
http://arxiv.org/abs/2304.03587
Autor:
Yang, Xu, Hu, Yi, Shang, Zhaohui, Ma, Bin, Ashley, Michael C. B., Cui, Xiangqun, Du, Fujia, Fu, Jianning, Gong, Xuefei, Gu, Bozhong, Jiang, Peng, Li, Xiaoyan, Li, Zhengyang, Tao, Charling, Wang, Lifan, Xu, Lingzhe, Yang, Shi-hai, Yu, Ce, Yuan, Xiangyan, Zhou, Ji-lin, Zhu, Zhenxi
AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth's surface. Here we present t
Externí odkaz:
http://arxiv.org/abs/2302.06997
Autor:
De, Kishalay, Mereminskiy, Ilya, Soria, Roberto, Conroy, Charlie, Kara, Erin, Anand, Shreya, Ashley, Michael C. B., Boyer, Martha L., Chakrabarty, Deepto, Grefenstette, Brian, Hankins, Matthew J., Hillenbrand, Lynne A., Jencson, Jacob E., Karambelkar, Viraj, Kasliwal, Mansi M., Lau, Ryan M., Lutovinov, Alexander, Moore, Anna M., Ng, Mason, Panagiotou, Christos, Pasham, Dheeraj R., Semena, Andrey, Simcoe, Robert, Soon, Jamie, Srinivasaragavan, Gokul P., Travouillon, Tony, Yao, Yuhan
We present the discovery and multi-wavelength characterization of SRGA J181414.6-225604, a Galactic hard X-ray transient discovered during the ongoing SRG/ART-XC sky survey. Using data from the Palomar Gattini-IR survey, we identify a spatially and t
Externí odkaz:
http://arxiv.org/abs/2205.09139
Autor:
De, Kishalay, Chakrabarty, Deepto, Soria, Roberto, Ashley, Michael C. B., Conroy, Charlie, Hankins, Matthew J., Kasliwal, Mansi M., Lau, Ryan M., Moore, Anna M., Simcoe, Robert, Soon, Jamie, Travouillon, Tony
The symbiotic X-ray binary Sct X-1 was suggested as the first known neutron star accreting from a red supergiant companion. Although known for nearly 50 years, detailed characterization of the donor remains lacking, particularly due to the extremely
Externí odkaz:
http://arxiv.org/abs/2201.09906
Autor:
Hansen, Kylie Y., De, Kishalay, Ashley, Michael C. B., Kasliwal, Mansi M., Delacroix, Alexander, Greffe, Tim, Hale, David, Hankins, Matthew J., Lau, Ryan, Li, Chengkui, McKenna, Daniel, Moore, Anna M., Ofek, Eran O., Smith, Roger M., Soon, Jamie, Soria, Roberto, Srinivasaragavan, Gokul P., Travouillon, Tony
We report second-timescale infrared photometry of the nova V1674 Her using Palomar Gattini-IR. These observations constitute the first infrared and highest temporal resolution data (resolution of ~ 0.84 s) of the nova reported to date. PGIR observed
Externí odkaz:
http://arxiv.org/abs/2110.13253
Autor:
Lau, Ryan M., Tinyanont, Samaporn, Hankins, Matthew J., Ashley, Michael C. B., De, Kishalay, Filippenko, Alexei V., Hillenbrand, Lynne A., Kasliwal, Mansi M., Mauerhan, Jon C., Moffat, Anthony F. J., Moore, Anna M., Smith, Nathan, Soon, Jamie, Soria, Roberto, Travouillon, Tony, van der Hucht, Karel A., Williams, Peredur M., Zheng, WeiKang
We present optical and infrared (IR) light curves of NaSt1, also known as Wolf-Rayet (WR) 122, with observations from Palomar Gattini-IR (PGIR), the Zwicky Transient Facility (ZTF), the Katzman Automatic Imaging Telescope (KAIT), the Asteroid Terrest
Externí odkaz:
http://arxiv.org/abs/2103.08771