Search Results - "Stanek, K. Z."

A New Cepheid Distance to the Giant Spiral M101 Based on Image Subtraction of Hubble Space Telescope/Advanced Camera for Surveys Observations by Shappee, Benjamin J, Stanek, K. Z

“…We accurately determine a new Cepheid distance to M101 (NGC 5457) using archival Hubble Space Telescope (HST)/Advanced Camera for Surveys V and I time series…”
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Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe by Shappee, B. J., Stanek, K. Z., Kochanek, C. S., Garnavich, P. M.

“…Using the Hubble Space Telescope (HST) and the Large Binocular Telescope, we followed the evolution of the Type Ia supernova (SN Ia) 2011fe for an…”
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Strong Evidence against a Non-degenerate Companion in SN 2012cg by Shappee, B. J., Piro, A. L., Stanek, K. Z., Patel, S. G., Margutti, R. A., Lipunov, V. M., Pogge, R. W.

“…Even though SN 2012cg is one of the best-studied Type Ia supernovae to date, the nature of its progenitor system has been debated in numerous studies…”
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Almost gone: SN 2008S and NGC 300 2008OT-1 are fainter than their progenitors by Adams, S M, Kochanek, C S, Prieto, J L, Dai, X, Shappee, B J, Stanek, K Z

“…We present late-time Hubble and Spitzer Space Telescope (SST) imaging of SN 2008S and NGC 300 2008OT-1, the prototypes of a common class of stellar transients…”
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Six months of multiwavelength follow-up of the tidal disruption candidate ASASSN-14li and implied TDE rates from ASAS-SN by Holoien, T W-S, Kochanek, C S, Prieto, J L, Stanek, K Z, Dong, Subo, Shappee, B J, Grupe, D, Brown, J S, Basu, U, Beacom, J F, Bersier, D, Brimacombe, J, Danilet, A B, Falco, E, Guo, Z, Jose, J, Herczeg, G J, Long, F, Pojmanski, G, Simonian, G V, Szczygiel, D M, Thompson, T A, Thorstensen, J R, Wagner, R M, Wozniak, P R

“…We present ground-based and Swift photometric and spectroscopic observations of the candidate tidal disruption event (TDE) ASASSN-14li, found at the centre of…”
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Discovery and Early Evolution of ASASSN-19bt, the First TDE Detected by TESS by Holoien, Thomas W.-S., Vallely, Patrick J., Auchettl, Katie, Stanek, K. Z., Kochanek, Christopher S., French, K. Decker, Prieto, Jose L., Shappee, Benjamin J., Brown, Jonathan S., Fausnaugh, Michael M., Dong, Subo, Thompson, Todd A., Bose, Subhash, Neustadt, Jack M. M., Cacella, P., Brimacombe, J., Kendurkar, Malhar R., Beaton, Rachael L., Boutsia, Konstantina, Chomiuk, Laura, Connor, Thomas, Morrell, Nidia, Newman, Andrew B., Rudie, Gwen C., Shishkovksy, Laura, Strader, Jay

“…We present the discovery and early evolution of ASASSN-19bt, a tidal disruption event (TDE) discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN)…”
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ASASSN-18tb: a most unusual Type Ia supernova observed by TESS and SALT by Vallely, P J, Fausnaugh, M, Jha, S W, Tucker, M A, Eweis, Y, Shappee, B J, Kochanek, C S, Stanek, K Z, Chen, Ping, Dong, Subo, Prieto, J L, Sukhbold, T, Thompson, Todd A, Brimacombe, J, Stritzinger, M D, Holoien, T W-S, Buckley, D A H, Gromadzki, M, Bose, Subhash

“…ABSTRACT We present photometric and spectroscopic observations of the unusual Type Ia supernova ASASSN-18tb, including a series of Southern African Large…”
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High tide: a systematic search for ellipsoidal variables in ASAS-SN by Rowan, D M, Stanek, K Z, Jayasinghe, T, Kochanek, C S, Thompson, Todd A, Shappee, B J, Holoien, T W -S, Prieto, J L

“…ABSTRACT The majority of non-merging stellar mass black holes are discovered by observing high energy emission from accretion processes. Here, we pursue the…”
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First Resolution of Microlensed Images by Dong, Subo, Mérand, A., Delplancke-Ströbele, F., Gould, Andrew, Chen, Ping, Post, R., Kochanek, C. S., Stanek, K. Z., Christie, G. W., Mutel, Robert, Natusch, T., Holoien, T. W.-S., Prieto, J. L., Shappee, B. J., Thompson, Todd A.

“…Abstract We employ Very Large Telescope Interferometer GRAVITY to resolve, for the first time, the two images generated by a gravitational microlens. The…”
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ASASSN-15lh: A highly super-luminous supernova by Dong, Subo, Shappee, B. J., Prieto, J. L., Jha, S. W., Stanek, K. Z., Holoien, T. W.-S., Kochanek, C. S., Thompson, T. A., Morrell, N., Thompson, I. B., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Brown, J. S., Bufano, F., Chen, Ping, Conseil, E., Danilet, A. B., Falco, E., Grupe, D., Kiyota, S., Masi, G., Nicholls, B., E, F. Olivares, Pignata, G., Pojmanski, G., Simonian, G. V., Szczygiel, D. M., Woźniak, P. R.

“…We report the discovery of ASASSN-15lh (SN 2015L), which we interpret as the most luminous supernova yet found. At redshift z = 0.2326, ASASSN-15lh reached an…”
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A New Cepheid Distance to the Maser-Host Galaxy NGC 4258 and Its Implications for the Hubble Constant by Macri, L. M, Stanek, K. Z, Bersier, D, Greenhill, L. J, Reid, M. J

“…We present initial results from a time series BVI survey of two fields in NGC 4258 using the HST ACS. This galaxy was selected because of its accurate…”
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The relative specific Type Ia supernovae rate from three years of ASAS-SN by Brown, J S, Stanek, K Z, Holoien, T W-S, Kochanek, C S, Shappee, B J, Prieto, J L, Dong, S, Chen, P, Thompson, Todd A, Beacom, J F, Stritzinger, M D, Bersier, D, Brimacombe, J

“…ABSTRACT We analyse the 476 SN Ia host galaxies from the All-Sky Automated Survey for Supernova (ASAS-SN) Bright Supernova Catalogues to determine the observed…”
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The Largest M Dwarf Flares from ASAS-SN by Schmidt, Sarah J., Shappee, Benjamin J., van Saders, Jennifer L., Stanek, K. Z., Brown, Jonathan S., Kochanek, C. S., Dong, Subo, Drout, Maria R., Frank, Stephan, Holoien, T. W.-S., Johnson, Sean, Madore, Barry F., Prieto, J. L., Seibert, Mark, Seidel, Marja K., Simonian, Gregory V. A.

“…The All-sky Automated Survey for Supernovae (ASAS-SN) is the only project in existence to scan the entire sky in optical light approximately every day,…”
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The Kilodegree Extremely Little Telescope (KELT): A Small Robotic Telescope for Large‐Area Synoptic Surveys by Pepper, Joshua, Pogge, Richard W., DePoy, D. L., Marshall, J. L., Stanek, K. Z., Stutz, Amelia M., Poindexter, Shawn, Siverd, Robert, O’Brien, Thomas P., Trueblood, Mark, Trueblood, Patricia

“…The Kilodegree Extremely Little Telescope (KELT) project is a survey for planetary transits of bright stars. It consists of a small‐aperture, wide‐field…”
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Chandra, HST/STIS, NICER, Swift, and TESS Detail the Flare Evolution of the Repeating Nuclear Transient ASASSN -14ko by 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.

“…Abstract 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…”
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UNMASKING THE SUPERNOVA IMPOSTORS by KOCHANEK, C. S, SZCZYGIEL, D. M, STANEK, K. Z

“…The canonical picture of a supernova impostor is a short -11 [< or ~] MV [< or ~] -14 optical transient from a massive star during which the star ejects a…”
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Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds from ASAS-SN: Implications for Thorne–Żytkow Objects and Super-asymptotic Giant Branch Stars by O’Grady, Anna J. G., Drout, Maria R., Shappee, B. J., Bauer, Evan B., Fuller, Jim, Kochanek, C. S., Jayasinghe, T., Gaensler, B. M., Stanek, K. Z., Holoien, Thomas W.-S., Prieto, J. L., Thompson, Todd A.

“…Abstract Stars with unusual properties can provide a wealth of information about rare stages of stellar evolution and exotic physics. However, determining the…”
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A New Class of Luminous Transients and a First Census of their Massive Stellar Progenitors by Thompson, Todd A, Prieto, José L, Stanek, K. Z, Kistler, Matthew D, Beacom, John F, Kochanek, Christopher S

“…The progenitors of SN 2008S and the 2008 luminous transient in NGC 300 were deeply dust-enshrouded massive stars, with extremely red mid-infrared (MIR) colors…”
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Four Years of Type Ia Supernovae Observed by TESS: Early-time Light-curve Shapes and Constraints on Companion Interaction Models by 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

“…Abstract We present 307 type Ia supernova (SN) light curves from the first 4 yr of the Transiting Exoplanet Survey Satellite mission. We use this sample to…”
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THE YOUNG AND BRIGHT TYPE IA SUPERNOVA ASASSN-14lp: DISCOVERY, EARLY-TIME OBSERVATIONS, FIRST-LIGHT TIME, DISTANCE TO NGC 4666, AND PROGENITOR CONSTRAINTS by Shappee, B. J., Piro, A. L., Holoien, T. W.-S., Prieto, J. L., Contreras, C., Itagaki, K., Burns, C. R., Kochanek, C. S., Stanek, K. Z., Alper, E., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Conseil, E., Danilet, A. B., Dong, Subo, Falco, E., Grupe, D., Hsiao, E. Y., Kiyota, S., Morrell, N., Nicolas, J., Phillips, M. M., Pojmanski, G., Simonian, G., Stritzinger, M., Szczygie, D. M., Taddia, F., Thompson, T. A., Thorstensen, J., Wagner, M. R., Wo niak, P. R.

“…ABSTRACT On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ∼2 days after first light using…”
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