Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Shappee, Benjamin. J."'
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdc091fbba20a86d5f65fb75e990160a
http://arxiv.org/abs/2306.17334
http://arxiv.org/abs/2306.17334
Autor:
Desai, Dhvanil D., Ashall, Chris, Shappee, Benjamin J., Morrell, Nidia, Galbany, Lluís, Burns, Christopher R., DerKacy, James M., Hinkle, Jason T., Hsiao, Eric, Kumar, Sahana, Lu, Jing, Phillips, Mark M., Shahbandeh, Melissa, Stritzinger, Maximilian D., Baron, Eddie, Bersten, Melina C., Brown, Peter J., de Jaeger, Thomas, Elias-Rosa, Nancy, Folatelli, Gastón, Huber, Mark E., Mazzali, Paolo, Müller-Bravo, Tomás E., Piro, Anthony L., Polin, Abigail, Suntzeff, Nicholas B., Anderson, Joseph P., Chambers, Kenneth C., Chen, Ting-Wan, de Boer, Thomas, Fulton, Michael D., Gao, Hua, Gromadzki, Mariusz, Inserra, Cosimo, Magnier, Eugene A., Nicholl, Matt, Ragosta, Fabio, Wainscoat, Richard, Young, David R.
We present photometric and spectroscopic observations and analysis of SN 2021bxu (ATLAS21dov), a low-luminosity, fast-evolving Type IIb supernova (SN). SN 2021bxu is unique, showing a large initial decline in brightness followed by a short plateau ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b429a729f19b952da0ea812231c9f100
Autor:
Hon, Marc, Huber, Daniel, Rui, Nicholas Z., Fuller, Jim, Veras, Dimitri, Kuszlewicz, James S., Kochukhov, Oleg, Stokholm, Amalie, Rørsted, Jakob Lysgaard, Yıldız, Mutlu, Orhan, Zeynep Çelik, Örtel, Sibel, Jiang, Chen, Hey, Daniel R., Isaacson, Howard, Zhang, Jingwen, Vrard, Mathieu, Stassun, Keivan G., Shappee, Benjamin J., Tayar, Jamie, Claytor, Zachary R., Beard, Corey, Bedding, Timothy R., Brinkman, Casey, Campante, Tiago L., Chaplin, William J., Chontos, Ashley, Giacalone, Steven, Holcomb, Rae, Howard, Andrew W., Lubin, Jack, MacDougall, Mason, Montet, Benjamin T., Murphy, Joseph M. A., Ong, Joel, Pidhorodetska, Daria, Polansk, Alex S., Rice, Malena, Stello, Dennis, Tyler, Dakotah, Van Zandt, Judah, Weiss, Lauren
When main-sequence stars expand into red giants, they are expected to engulf close-in planets. Until now, the absence of planets with short orbital periods around post-expansion, core-helium-burning red giants has been interpreted as evidence that sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb8b517254234e80a7e91062f00df7e0
Autor:
Hey, Daniel R., Huber, Daniel, Shappee, Benjamin J., Bland-Hawthorn, Joss, Tepper-García, Thor, Sanderson, Robyn, Chakrabarti, Sukanya, Saunders, Nicholas, Hunt, Jason A. S., Bedding, Timothy R., Tonry, John
The Galactic bulge and bar are critical to our understanding of the Milky Way. However, due to the lack of reliable stellar distances, the structure and kinematics of the bulge/bar beyond the Galactic center have remained largely unexplored. Here, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e31b8a3bb64f9a82c0a203397758b89c
Some galaxies show little to no sign of active galactic nucleus (AGN) activity, yet exhibit strong coronal emission lines (CLs) relative to common narrow emission lines. Many of these coronal lines have ionization potentials of $\geq 100$ eV, thus re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a565fefee2452ee2b3f55a6748aaa8e
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31219b232f3fc93dcf181f80c349fbf1
http://arxiv.org/abs/2209.15019
http://arxiv.org/abs/2209.15019
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4deb5c3fe44cfe864b292888d84fd0
Autor:
Hinkle, Jason T., Kochanek, Christopher S., Shappee, Benjamin J., Vallely, Patrick J., Auchettl, Katie, Fausnaugh, Michael, Holoien, Thomas W. -S., Treiber, Helena P., Payne, Anna V., Gaudi, B. Scott, Prieto, Jose L., Stassun, Keivan G., Thompson, Todd A., Tonry, John L., Villanueva, Steven
We analyze high-cadence data from the Transiting Exoplanet Survey Satellite (TESS) of the ambiguous nuclear transient (ANT) ASASSN-18el. The optical changing-look phenomenon in ASASSN-18el has been argued to be due to either a drastic change in the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31a042889bfe0cc97d6d9138cdfd9fa2
Autor:
Galbany, Lluís, Ashall, Chris, Hoeflich, Peter, González-Gaitán, Santiago, Taubenberger, Stefan, Stritzinger, Maximilian, Hsiao, Eric Y., Mazzali, Paolo, Baron, Eddie, Blondin, Stéphane, Bose, Subhash, Bulla, Mattia, Burke, Jamison F., Burns, Christopher R., Cartier, Régis, Chen, Ping, Della Valle, Massimo, Diamond, Tiara R., Gutiérrez, Claudia P., Harmanen, Jussi, Hiramatsu, Daichi, Holoien, T. W. -S., Hosseinzadeh, Griffin, Howell, D. Andrew, Huang, Yiwen, Inserra, Cosimo, de Jaeger, Thomas, Jha, Saurabh W., Kangas, Tuomas, Kromer, Markus, Lyman, Joseph D., Maguire, Kate, Marion, George Howie, Milisavljevic, Dan, Prentice, Simon J., Razza, Alessandro, Reynolds, Thomas M., Sand, David J., Shappee, Benjamin J., Shekhar, Rohit, Smartt, Stephen J., Stassun, Keivan G., Sullivan, Mark, Valenti, Stefano, Villanueva, Steven, Wang, Xiaofeng, Wheeler, J. Craig, Zhai, Qian, Zhang, Jujia
We present a comprehensive dataset of optical and near-infrared photometry and spectroscopy of type~Ia supernova (SN) 2016hnk, combined with integral field spectroscopy (IFS) of its host galaxy, MCG -01-06-070, and nearby environment. Properties of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cad858448302d2e64151e76b4efe051
Autor:
Graur, Or, Zurek, David R., Rest, Armin, Seitenzahl, Ivo R., Shappee, Benjamin J., Fisher, Robert, Guillochon, James, Shara, Michael M., Riess, Adam G.
The late-time light curves of Type Ia supernovae (SNe Ia), observed $>900$ days after explosion, present the possibility of a new diagnostic for SN Ia progenitor and explosion models. First, however, we must discover what physical process (or combina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaad519bd54b5e28b282c42fac599a2a