Search Results - "Jha, S. W."

Simulations of the WFIRST Supernova Survey and Forecasts of Cosmological Constraints by Hounsell, R., Scolnic, D., Foley, R. J., Kessler, R., Miranda, V., Avelino, A., Bohlin, R. C., Filippenko, A. V., Frieman, J., Jha, S. W., Kelly, P. L., Kirshner, R. P., Mandel, K., Rest, A., Riess, A. G., Rodney, S. A., Strolger, L.

“…The Wide Field InfraRed Survey Telescope (WFIRST) was the highest-ranked large space-based mission of the 2010 New Worlds, New Horizons decadal survey. It is…”
Get full text

Models and Simulations for the Photometric LSST Astronomical Time Series Classification Challenge (PLAsTiCC) by Kessler, R., Narayan, G., Avelino, A., Bachelet, E., Biswas, R., Brown, P. J., Chernoff, D. F., Connolly, A. J., Dai, M., Daniel, S., Stefano, R. Di, Drout, M. R., Galbany, L., González-Gaitán, S., Graham, M. L., Hlo ek, R., Ishida, E. E. O., Guillochon, J., Jha, S. W., Jones, D. O., Mandel, K. S., Muthukrishna, D., O'Grady, A., Peters, C. M., Pierel, J. R., Ponder, K. A., Prša, A., Rodney, S., Villar, V. A.

“…We describe the simulated data sample for the Photometric Large Synoptic Survey Telescope (LSST) Astronomical Time Series Classification Challenge (PLAsTiCC),…”
Get full text

SALT3: An Improved Type Ia Supernova Model for Measuring Cosmic Distances by Kenworthy, W. D., Jones, D. O., Dai, M., Kessler, R., Scolnic, D., Brout, D., Siebert, M. R., Pierel, J. D. R., Dettman, K. G., Dimitriadis, G., Foley, R. J., Jha, S. W., Pan, Y.-C., Riess, A., Rodney, S., Rojas-Bravo, C.

“…Abstract A spectral-energy distribution (SED) model for Type Ia supernovae (SNe Ia) is a critical tool for measuring precise and accurate distances across a…”
Get full text

The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am by Tartaglia, L., Sand, D. J., Valenti, S., Wyatt, S., Anderson, J. P., Arcavi, I., Ashall, C., Botticella, M. T., Cartier, R., Chen, T.-W., Cikota, A., Coulter, D., Valle, M. Della, Foley, R. J., Gal-Yam, A., Galbany, L., Gall, C., Haislip, J. B., Harmanen, J., Hosseinzadeh, G., Howell, D. A., Hsiao, E. Y., Inserra, C., Jha, S. W., Kankare, E., Kilpatrick, C. D., Kouprianov, V. V., Kuncarayakti, H., Maccarone, T. J., Maguire, K., Mattila, S., Mazzali, P. A., McCully, C., Melandri, A., Morrell, N., Phillips, M. M., Pignata, G., Piro, A. L., Prentice, S., Reichart, D. E., Rojas-Bravo, C., Smartt, S. J., Smith, K. W., Sollerman, J., Stritzinger, M. D., Sullivan, M., Taddia, F., Young, D. R.

“…Abstract We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during the ongoing (DLT40) one-day cadence supernova…”
Get full text

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…”
Get full text

Nebular Spectroscopy of the "Blue Bump" Type Ia Supernova 2017cbv by Sand, D. J., Graham, M. L., Botyánszki, J., Hiramatsu, D., McCully, C., Valenti, S., Hosseinzadeh, G., Howell, D. A., Burke, J., Cartier, R., Diamond, T., Hsiao, E. Y., Jha, S. W., Kasen, D., Kumar, S., Marion, G. H., Suntzeff, N., Tartaglia, L., Wheeler, J. C., Wyatt, S.

“…We present nebular phase optical and near-infrared spectroscopy of the Type Ia supernova (SN) 2017cbv. The early light curves of SN 2017cbv showed a prominent…”
Get full text

SN REFSDAL: PHOTOMETRY AND TIME DELAY MEASUREMENTS OF THE FIRST EINSTEIN CROSS SUPERNOVA by Rodney, S. A., Strolger, L.-G., Kelly, P. L., Brada, M., Brammer, G., Filippenko, A. V., Foley, R. J., Graur, O., Hjorth, J., Jha, S. W., McCully, C., Molino, A., Riess, A. G., Schmidt, K. B., Selsing, J., Sharon, K., Treu, T., Weiner, B. J., Zitrin, A.

“…ABSTRACT We present the first year of Hubble Space Telescope imaging of the unique supernova (SN) "Refsdal," a gravitationally lensed SN at z = 1.488 0.001…”
Get full text

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…”
Get full text

Extensive HST ultraviolet spectra and multiwavelength observations of SN 2014J in M82 indicate reddening and circumstellar scattering by typical dust by Foley, Ryan J., Fox, O. D., McCully, C., Phillips, M. M., Sand, D. J., Zheng, W., Challis, P., Filippenko, A. V., Folatelli, G., Hillebrandt, W., Hsiao, E. Y., Jha, S. W., Kirshner, R. P., Kromer, M., Marion, G. H., Nelson, M., Pakmor, R., Pignata, G., Röpke, F. K., Seitenzahl, I. R., Silverman, J. M., Skrutskie, M., Stritzinger, M. D.

“…SN 2014J in M82 is the closest detected Type Ia supernova (SN Ia) in at least 28 yr and perhaps in 410 yr. Despite its small distance of 3.3 Mpc, SN 2014J is…”
Get full text

LensWatch. I. Resolved HST Observations and Constraints on the Strongly Lensed Type Ia Supernova 2022qmx (“SN Zwicky”) by Pierel, J. D. R., Arendse, N., Ertl, S., Huang, X., Moustakas, L. A., Schuldt, S., Shajib, A. J., Shu, Y., Birrer, S., Bronikowski, M., Hjorth, J., Suyu, S. H., Agarwal, S., Agnello, A., Bolton, A. S., Chakrabarti, S., Cold, C., Courbin, F., Della Costa, J. M., Dhawan, S., Engesser, M., Fox, Ori D., Gall, C., Gomez, S., Goobar, A., Jha, S. W., Jimenez, C., Johansson, J., Larison, C., Li, G., Marques-Chaves, R., Mao, S., Mazzali, P. A., Perez-Fournon, I., Petrushevska, T., Poidevin, F., Rest, A., Sheu, W., Shirley, R., Silver, E., Storfer, C., Strolger, L. G., Treu, T., Wojtak, R., Zenati, Y.

“…Abstract Supernovae (SNe) that have been multiply imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity…”
Get full text

JWST Low-resolution MIRI Spectral Observations of SN 2021aefx: High-density Burning in a Type Ia Supernova by DerKacy, J. M., Ashall, C., Hoeflich, P., Baron, E., Shappee, B. J., Baade, D., Andrews, J., Bostroem, K. A., Brown, P. J., Burns, C. R., Burrow, A., Cikota, A., de Jaeger, T., Do, A., Dong, Y., Dominguez, I., Galbany, L., Hsiao, E. Y., Karamehmetoglu, E., Krisciunas, K., Kumar, S., Lu, J., Evans, T. B. Mera, Maund, J. R., Mazzali, P., Medler, K., Morrell, N., Patat, F., Phillips, M. M., Shahbandeh, M., Stangl, S., Stevens, C. P., Stritzinger, M. D., Suntzeff, N. B., Telesco, C. M., Tucker, M. A., Valenti, S., Wang, L., Yang, Y., Jha, S. W., Kwok, L. A.

“…Abstract We present a JWST/MIRI low-resolution mid-infrared (MIR) spectroscopic observation of the normal Type Ia supernova (SN Ia) SN 2021aefx at +323 days…”
Get full text

The unexpected, long-lasting, UV rebrightening of the superluminous supernova ASASSN-15lh by Godoy-Rivera, D, Stanek, K Z, Kochanek, C S, Chen, Ping, Dong, Subo, Prieto, J L, Shappee, B J, Jha, S W, Foley, R J, Pan, Y-C, Holoien, T W-S, Thompson, Todd A, Grupe, D, Beacom, J F

“…Given its peak luminosity and early-time spectra, ASASSN-15lh was classified as the most luminous supernova ever discovered. Here, we report a UV rebrightening…”
Get full text

Propagating Uncertainties in the SALT3 Model-training Process to Cosmological Constraints by Dai, M., Jones, D. O., Kenworthy, W. D., Kessler, R., Pierel, J. D. R., Foley, R. J., Jha, S. W., Scolnic, D. M.

“…Abstract Type Ia supernovae (SNe Ia) are standardizable candles that must be modeled empirically to yield cosmological constraints. To understand the…”
Get full text

Nebular-phase spectra of Type Ia supernovae from the Las Cumbres Observatory Global Supernova Project by Graham, M L, Kennedy, T D, Kumar, S, Amaro, R C, Sand, D J, Jha, S W, Galbany, L, Vinko, J, Wheeler, J C, Hsiao, E Y, Bostroem, K A, Burke, J, Hiramatsu, D, Hosseinzadeh, G, McCully, C, Howell, D A, Diamond, T, Hoeflich, P, Wang, X, Li, W

“…ABSTRACT The observed diversity in Type Ia supernovae (SNe Ia) – the thermonuclear explosions of carbon–oxygen white dwarf stars used as cosmological standard…”
Get full text

SN REFSDAL: CLASSIFICATION AS A LUMINOUS AND BLUE SN 1987A-LIKE TYPE II SUPERNOVA by Kelly, P. L., Brammer, G., Selsing, J., Foley, R. J., Hjorth, J., Rodney, S. A., Christensen, L., Strolger, L.-G., Filippenko, A. V., Treu, T., Steidel, C. C., Strom, A., Riess, A. G., Zitrin, A., Schmidt, K. B., Brada, M., Jha, S. W., Graham, M. L., McCully, C., Graur, O., Weiner, B. J., Silverman, J. M., Taddia, F.

“…ABSTRACT We have acquired Hubble Space Telescope (HST) and Very Large Telescope near-infrared spectra and images of supernova (SN) Refsdal after its discovery…”
Get full text

Discovery and Rapid Follow-up Observations of the Unusual Type II SN 2018ivc in NGC 1068 by Bostroem, K. A., Valenti, S., Sand, D. J., Andrews, J. E., Van Dyk, S. D., Galbany, L., Pooley, D., Amaro, R. C., Smith, N., Yang, S., Anupama, G. C., Arcavi, I., Baron, E., Brown, P. J., Burke, J., Cartier, R., Hiramatsu, D., Dastidar, R., DerKacy, J. M., Dong, Y., Egami, E., Ertel, S., Filippenko, A. V., Fox, O. D., Haislip, J., Hosseinzadeh, G., Howell, D. A., Gangopadhyay, A., Jha, S. W., Kouprianov, V., Kumar, B., Lundquist, M., Milisavljevic, D., McCully, C., Milne, P., Misra, K., Reichart, D. E., Sahu, D. K., Sai, H., Singh, A., Smith, P. S., Vinko, J., Wang, X., Wang, Y., Wheeler, J. C., Williams, G. G., Wyatt, S., Zhang, J., Zhang, X.

“…We present the discovery and high-cadence follow-up observations of SN 2018ivc, an unusual SNe II that exploded in NGC 1068 (D = 10.1 Mpc). The light curve of…”
Get full text

Results of the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC) by Hložek, R., Malz, A. I., Ponder, K. A., Dai, M., Narayan, G., Ishida, E. E. O., Jr, T. Allam, Bahmanyar, A., Bi, X., Biswas, R., Boone, K., Chen, S., Du, N., Erdem, A., Galbany, L., Garreta, A., Jha, S. W., Jones, D. O., Kessler, R., Lin, M., Liu, J., Lochner, M., Mahabal, A. A., Mandel, K. S., Margolis, P., Martínez-Galarza, J. R., McEwen, J. D., Muthukrishna, D., Nakatsuka, Y., Noumi, T., Oya, T., Peiris, H. V., Peters, C. M., Puget, J. F., Setzer, C. N., Siddhartha, Stefanov, S., Xie, T., Yan, L., Yeh, K.-H., Zuo, W.

“…Abstract Next-generation surveys like the Legacy Survey of Space and Time (LSST) on the Vera C. Rubin Observatory (Rubin) will generate orders of magnitude…”
Get full text

SN 2022joj: A Potential Double Detonation with a Thin Helium Shell by Padilla Gonzalez, E., Howell, D. A., Terreran, G., McCully, C., Newsome, M., Burke, J., Farah, J., Pellegrino, C., Bostroem, K. A., Hosseinzadeh, G., Pearson, J., Sand, D. J., Shrestha, M., Smith, N., Dong, Y., Meza Retamal, N., Valenti, S., Boos, S., Shen, K. J., Townsley, D., Galbany, L., Piscarreta, L., Foley, R. J., Bustamante-Rosell, M. J., Coulter, D. A., Chornock, R., Davis, K. W., Dickinson, C. B., Jones, D. O., Kutcka, J., Le Saux, X. K., Rojas-Bravo, C. R., Taggart, K., Tinyanont, S., Yang, G., Jha, S. W., Margutti, R.

“…Abstract We present photometric and spectroscopic data for SN 2022joj, a nearby peculiar Type Ia supernova (SN Ia) with a fast decline rate (Δ m 15,B = 1.4…”
Get full text

Two peculiar fast transients in a strongly lensed host galaxy by Rodney, S. A., Balestra, I., Bradac, M., Brammer, G., Broadhurst, T., Caminha, G. B., Chirivì, G., Diego, J. M., Filippenko, A. V., Foley, R. J., Graur, O., Grillo, C., Hemmati, S., Hjorth, J., Hoag, A., Jauzac, M., Jha, S. W., Kawamata, R., Kelly, P. L., McCully, C., Mobasher, B., Molino, A., Oguri, M., Richard, J., Riess, A. G., Rosati, P., Schmidt, K. B., Selsing, J., Sharon, K., Strolger, L.-G., Suyu, S. H., Treu, T., Weiner, B. J., Williams, L. L. R., Zitrin, A.

“…A massive galaxy cluster can serve as a magnifying glass for distant stellar populations, as strong gravitational lensing magnifies background galaxies and…”
Get full text

First-year Sloan Digital Sky Survey-II supernova results: consistency and constraints with other intermediate-redshift data sets by Lampeitl, H., Nichol, R. C., Seo, H.-J., Giannantonio, T., Shapiro, C., Bassett, B., Percival, W. J., Davis, T. M., Dilday, B., Frieman, J., Garnavich, P., Sako, M., Smith, M., Sollerman, J., Becker, A.C., Cinabro, D., Filippenko, A. V., Foley, R. J., Hogan, C. J., Holtzman, J. A., Jha, S. W., Konishi, K., Marriner, J., Richmond, M. W., Riess, A. G., Schneider, D. P., Stritzinger, M., van der Heyden, K. J., VanderPlas, J. T., Wheeler, J. C., Zheng, C.

“…We present an analysis of the luminosity distances of Type Ia Supernovae (SNe) from the Sloan Digital Sky Survey-II (SDSS-II) SN Survey in conjunction with…”
Get full text