Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Vallely, P J"'
Autor:
Hinkle, Jason T., Auchettl, Katie, Hoogendam, Willem B., Payne, Anna V., Holoien, Thomas W. -S., Shappee, Benjamin J., Tucker, Michael A., Kochanek, Christopher S., Stanek, K. Z., Vallely, Patrick J., Angus, Charlotte R., Ashall, Chris, de Jaeger, Thomas, Desai, Dhvanil D., Do, Aaron, Fausnaugh, Michael M., Huber, Mark E., Vaught, Ryan J. Rickards, Shi, Jennifer
We present observations of ASASSN-22ci (AT2022dbl), a nearby tidal disruption event (TDE) discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) at a distance of d$_L \simeq 125$ Mpc. Roughly two years after the initial ASAS-SN discovery
Externí odkaz:
http://arxiv.org/abs/2412.15326
Autor:
Sears, Huei, Chornock, Ryan, Blanchard, Peter, Margutti, Raffaella, Villar, V. Ashley, Pierel, Justin, Vallely, Patrick J., Alexander, Kate D., Berger, Edo, Eftekhari, Tarraneh, Jacobson-Galan, Wynn V., Laskar, Tanmoy, LeBaron, Natalie, Metzger, Brian D., Milisavljevic, Dan
GRB 221009A is one of the brightest transients ever observed with the highest peak gamma-ray flux for a gamma-ray burst (GRB). A type Ic-BL supernova (SN), SN 2022xiw, was definitively detected in late-time JWST spectroscopy (t = 195 days, observer-f
Externí odkaz:
http://arxiv.org/abs/2412.02663
Autor:
Fausnaugh, M. M., Vallely, P. J., Tucker, M. A., Kochanek, C. S., Shappee, B. J., Stanek, K. Z., Ricker, George R., Vanderspek, Roland, Agarwal, Manan, Daylan, Tansu, Jayaraman, Rahul, Hounsell, Rebekah, Muthukrishna, Daniel
We present 307 Type Ia supernova (SN) light curves from the first four years of the TESS mission. We use this sample to characterize the shapes of the early time light curves, measure the rise times from first light to peak, and search for companion
Externí odkaz:
http://arxiv.org/abs/2307.11815
Autor:
Yuk, Heechan, Dai, Xinyu, Jayasinghe, T., Vallely, Patrick J., Kochanek, Christopher S., Shappee, Benjamin J., Stanek, K. Z.
We analyze the optical power spectral density (PSD) for 22 active galactic nuclei (AGN) with measured X-ray PSDs using light curves from the All-Sky Automated Survey for SuperNovae (ASAS-SN) and the Transiting Exoplanet Survey Satellite (TESS). The j
Externí odkaz:
http://arxiv.org/abs/2306.17334
Autor:
Olivier, Grace M., Lopez, Laura A., Auchettl, Katie, Rosen, Anna L., Batta, Aldo, Neugent, Kathryn F., Ramirez-Ruiz, Enrico, Jayasinghe, Tharindu, Vallely, Patrick J., Rowan, Dominick M.
WR 20a is the most massive close-in binary known in our Galaxy. It is composed of two $\approx$80 M$_\odot$ Wolf-Rayet stars with a short period of $\approx$3.7 days in the open cluster Westerlund 2. As such, WR 20a presents us with a unique laborato
Externí odkaz:
http://arxiv.org/abs/2212.02514
Autor:
Neumann, K. D., Holoien, T. W. -S., Kochanek, C. S., Stanek, K. Z., Vallely, P. J., Shappee, B. J., Prieto, J. L., Pessi, T., Jayasinghe, T., Brimacombe, J., Bersier, D., Aydi, E., Basinger, C., Beacom, J. F., Bose, S., Brown, J. S., Chen, P., Clocchiatti, A., Desai, D. D., Dong, Subo, Falco, E., Holmbo, S., Morrell, N., Shields, J. V., Sokolovsky, K. V., Strader, J., Stritzinger, M. D., Swihart, S., Thompson, T. A., Way, Z., Aslan, L., Bishop, D. W., Bock, G., Bradshaw, J., Cacella, P., Castro-Morales, N., Conseil, E., Cornect, R., Cruz, I., Farfan, R. G., Fernandez, J. M., Gabuya, A., Gonzalez-Carballo, J. -L., Kendurkar, M. R., Kiyota, S., Koff, R. A., Krannich, G., Marples, P., Masi, G., Monard, L. A. G., Muñoz, J. A., Nicholls, B., Post, R. S., Pujic, Z., Stone, G., Tomasella, L., Trappett, D. L., Wiethoff, W. S.
Publikováno v:
MNRAS, 520, 4356 (2023)
We catalog the 443 bright supernovae discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) in $2018-2020$ along with the 519 supernovae recovered by ASAS-SN and 516 additional $m_{peak}\leq18$ mag supernovae missed by ASAS-SN. Our stati
Externí odkaz:
http://arxiv.org/abs/2210.06492
Autor:
Treiber, Helena P., Hinkle, Jason T., Fausnaugh, Michael M., Shappee, Benjamin J., Kochanek, Christopher S., Vallely, Patrick J., Auchettl, Katie, Holoien, Thomas W. S., Payne, Anna V., Dai, Xinyu
We used Transiting Exoplanet Survey Satellite (TESS) data to identify 29 candidate active galactic nuclei (AGNs) through their optical variability. The high-cadence, high-precision TESS light curves present a unique opportunity for the identification
Externí odkaz:
http://arxiv.org/abs/2209.15019
Autor:
Holoien, Thomas W. -S., Berger, Vera L., Hinkle, Jason T., Galbany, L., Strom, Allison L., Vallely, Patrick J., Anderson, Joseph P., Boutsia, Konstantina, French, K. D., Kochanek, Christopher S., Kuncarayakti, Hanindyo, Lyman, Joseph D., Morrell, Nidia, Prieto, Jose L., Sánchez, Sebastián F., Stanek, K. Z., Walth, Gregory L.
We present a spectroscopic analysis of 44 low-luminosity host galaxies of Type Ia supernovae (SNe Ia) detected by the All-Sky Automated Survey for Supernovae (ASAS-SN), using the emission lines to measure metallicities and star formation rates. We fi
Externí odkaz:
http://arxiv.org/abs/2207.07657
Autor:
Cai, Y. -Z., Pastorello, A., Fraser, M., Wang, X. -F., Filippenko, A. V., Reguitti, A., Patra, K. C., Goranskij, V. P., Barsukova, E. A., Brink, T. G., Elias-Rosa, N., Stevance, H. F., Zheng, W., Yang, Y., Atapin, K. E., Benetti, S., de Boer, T. J. L., Bose, S., Burke, J., Byrne, R., Cappellaro, E., Chambers, K. C., Chen, W. -L., Emami, N., Gao, H., Hiramatsu, D., Howell, D. A., Huber, M. E., Kankare, E., Kelly, P. L., Kotak, R., Kravtsov, T., Lander, V. Yu., Li, Z. -T., Lin, C. -C., Lundqvist, P., Magnier, E. A., Malygin, E. A., Maslennikova, N. A., Matilainen, K., Mazzali, P. A., McCully, C., Mo, J., Moran, S., Newsome, M., Oparin, D. V., Gonzalez, E. Padilla, Reynolds, T. M., Shatsky, N. I., Smartt, S. J., Smith, K. W., Stritzinger, M. D., Tatarnikov, A. M., Terreran, G., Uklein, R. I., Valerin, G., Vallely, P. J., Vozyakova, O. V., Wainscoat, R., Yan, S. -Y., Zhang, J. -J., Zhang, T. -M., Zheltoukhov, S. G., Dastidar, R., Fulton, M., Galbany, L., Gangopadhyay, A., Ge, H. -W., Gutiérrez, C. P., Lin, H., Misra, K., Ou, Z. -W., Salmaso, I., Tartaglia, L., Xiao, L., Zhang, X. -H.
Publikováno v:
A&A 667, A4 (2022)
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive stage by synoptic surveys, but the transient was detected only at a few
Externí odkaz:
http://arxiv.org/abs/2207.00734
Autor:
Payne, Anna V., Auchettl, Katie, Shappee, Benjamin J., Kochanek, Christopher S., Boyd, Patricia T., Holoien, Thomas W. -S., Fausnaugh, Michael M., Ashall, Chris, Hinkle, Jason T., Vallely, Patrick J., Stanek, K. Z., Thompson, Todd A.
ASASSN-14ko is a nuclear transient at the center of the AGN ESO 253-G003 that undergoes periodic flares. Optical flares were first observed in 2014 by the All-Sky Automated Survey for Supernovae (ASAS-SN) and their peak times are well-modeled with a
Externí odkaz:
http://arxiv.org/abs/2206.11278