Search Results - "Wozniak, P R"

Investigation of redshift- and duration-dependent clustering of gamma-ray bursts by Ukwatta, T N, Wozniak, P R

“…Gamma-ray bursts (GRBs) are detectable out to very large distances and as such are potentially powerful cosmological probes. Historically, the angular…”
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Machine-z: Rapid Machine-Learned Redshift Indicator for Swift Gamma-Ray Bursts by Ukwatta, T. N., Wozniak, P. R., Gehrels, N.

“…Studies of high-redshift gamma-ray bursts (GRBs) provide important information about the early Universe such as the rates of stellar collapsars and mergers,…”
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The Bright Optical Flash and Afterglow from the Gamma-Ray Burst GRB 130427A by Vestrand, W. T., Wren, J. A., Panaitescu, A., Wozniak, P. R., Davis, H., Palmer, D. M., Vianello, G., Omodei, N., Xiong, S., Briggs, M. S., Elphick, M., Paciesas, W., Rosing, W.

“…The optical light generated simultaneously with x-rays and gamma rays during a gamma-ray burst (GRB) provides clues about the nature of the explosions that…”
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Confined dense circumstellar material surrounding a regular type II supernova by Yaron, O., Perley, D. A., Gal-Yam, A., Groh, J. H., Horesh, A., Ofek, E. O., Kulkarni, S. R., Sollerman, J., Fransson, C., Rubin, A., Szabo, P., Sapir, N., Taddia, F., Cenko, S. B., Valenti, S., Arcavi, I., Howell, D. A., Kasliwal, M. M., Vreeswijk, P. M., Khazov, D., Fox, O. D., Cao, Y., Gnat, O., Kelly, P. L., Nugent, P. E., Filippenko, A. V., Laher, R. R., Wozniak, P. R., Lee, W. H., Rebbapragada, U. D., Maguire, K., Sullivan, M., Soumagnac, M. T.

“…With the advent of new wide-field, high-cadence optical transient surveys, our understanding of the diversity of core-collapse supernovae has grown…”
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Microlensing Optical Depth toward the Galactic Bulge Using Bright Sources from OGLE-II by Sumi, T, Woźniak, P. R, Udalski, A, Szymański, M, Kubiak, M, Pietrzyński, G, Soszyński, I, Żebruń, K, Szewczyk, O, Wyrzykowski, Ł, Paczyński, B

“…We present a measurement of the microlensing optical depth toward the Galactic bulge based on 4 years of the OGLE-II survey. We consider only bright sources in…”
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The Troublesome Broadband Evolution of GRB 061126: Does a Gray Burst Imply Gray Dust? by Perley, D. A, Bloom, J. S, Butler, N. R, Pollack, L. K, Holtzman, J, Blake, C. H, Kocevski, D, Vestrand, W. T, Li, W, Foley, R. J, Bellm, E, Chen, H.-W, Prochaska, J. X, Starr, D, Filippenko, A. V, Falco, E. E, Szentgyorgyi, A. H, Wren, J, Wozniak, P. R, White, R, Pergande, J

“…We report on observations of a gamma-ray burst (GRB 061126) with an extremely bright (R approximately 12 mag at peak) early-time optical afterglow. The optical…”
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GAMMA-RAY BURST AT THE EXTREME : THE NAKED-EYE BURST GRB 080319B by WOZNIAK, P. R, VESTRAND, W. T, PANAITESCU, A. D, WREN, J. A, DAVIS, H. R, WHITE, R. R

“…On 2008 March 19, the northern sky was the stage of a spectacular optical transient that for a few seconds remained visible to the naked eye. The transient was…”
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A link between prompt optical and prompt γ-ray emission in γ-ray bursts by Casperson, D, Asa, J. W, Parsons, A, Schier, J. A, Hullinger, D, Wozniak, P. R, Wren, J. A, Vestrand, W. T, Palmer, D, McGowan, K. E, McLean, K, White, R. R, Krimm, H. A, Tueller, J, Fenimore, E. E, Gehrels, N, Davis, H, Cummings, J. R, Markwardt, C. B, Evans, S, Sakamoto, T, Galassi, M, Barthelmy, S. D

“…The prompt optical emission that arrives with the γ-rays from a cosmic γ-ray burst (GRB) is a signature of the engine powering the burst, the properties of the…”
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Energy input and response from prompt and early optical afterglow emission in γ-ray bursts by Casperson, D, Golentskii, S, Fenimore, E, Wozniak, P. R, Aptekar, R, Wren, J. A, Vestrand, W. T, Evans, S, Sakamoto, T, Pal'shin, V, White, R. R

“…The taxonomy of optical emission detected during the critical first few minutes after the onset of a γ-ray burst (GRB) defines two broad classes: prompt…”
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RAPTOR Observations of Delayed Explosive Activity in the High-Redshift Gamma-Ray Burst GRB 060206 by Woźniak, P. R, Vestrand, W. T, Wren, J. A, White, R. R, Evans, S. M, Casperson, D

“…The Rapid Telescopes for Optical Response (RAPTOR) system at Los Alamos National Laboratory observed GRB 060206 starting 48.1 minutes after g-ray emission…”
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The First Direct Detection of a Gravitational μ-Lens toward the Galactic Bulge by Kozłowski, S, Woźniak, P. R, Mao, S, Wood, A

“…We present a direct detection of the gravitational lens that caused the microlensing event MACHO-95-BLG-37. This is the first fully resolved microlensing…”
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Mapping stellar kinematics across the Galactic bar: HST measurements of proper motions in 35 fields by Kozłowski, S., Woźniak, P. R., Mao, S., Smith, M. C., Sumi, T., Vestrand, W. T., Wyrzykowski, Ł.

“…We present a proper motion mini-survey of 35 fields in the vicinity of Baade window, (l, b) = (1°, −4°), sampling roughly a 5 × 2.5-deg2 region of the Galactic…”
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DETECTION OF BROAD Hα EMISSION LINES IN THE LATE-TIME SPECTRA OF A HYDROGEN-POOR SUPERLUMINOUS SUPERNOVA by Yan, Lin, Quimby, R., Ofek, E., Gal-Yam, A., Mazzali, P., Perley, D., Vreeswijk, P. M., Leloudas, G., Cia, A. de, Masci, F., Cenko, S. B., Cao, Y., Kulkarni, S. R., Nugent, P. E., Rebbapragada, Umaa D., Woźniak, P. R., Yaron, O.

“…iPTF13ehe is a hydrogen-poor superluminous supernova (SLSN) at z = 0.3434, with a slow-evolving light curve and spectral features similar to SN2007bi. It rises…”
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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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FLASH SPECTROSCOPY: EMISSION LINES FROM THE IONIZED CIRCUMSTELLAR MATERIAL AROUND <10-DAY-OLD TYPE II SUPERNOVAE by Khazov, D., Yaron, O., Gal-Yam, A., Manulis, I., Rubin, A., Kulkarni, S. R., Arcavi, I., Kasliwal, M. M., Ofek, E. O., Cao, Y., Perley, D., Sollerman, J., Horesh, A., Sullivan, M., Filippenko, A. V., Nugent, P. E., Howell, D. A., Cenko, S. B., Silverman, J. M., Ebeling, H., Taddia, F., Johansson, J., Laher, R. R., Surace, J., Rebbapragada, U. D., Wozniak, P. R., Matheson, T.

“…ABSTRACT Supernovae (SNe) embedded in dense circumstellar material (CSM) may show prominent emission lines in their early-time spectra (≤10 days after the…”
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A strong ultraviolet pulse from a newborn type Ia supernova by Cao, Yi, Kulkarni, S. R., Howell, D. Andrew, Gal-Yam, Avishay, Kasliwal, Mansi M., Valenti, Stefano, Johansson, J., Amanullah, R., Goobar, A., Sollerman, J., Taddia, F., Horesh, Assaf, Sagiv, Ilan, Cenko, S. Bradley, Nugent, Peter E., Arcavi, Iair, Surace, Jason, Woźniak, P. R., Moody, Daniela I., Rebbapragada, Umaa D., Bue, Brian D., Gehrels, Neil

“…Observations of declining ultraviolet emission from a type Ia supernova within four days of the explosion are as expected if material ejected by the supernova…”
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RAPTOR Observations of the Early Optical Afterglow from GRB 050319 by Woźniak, P. R, Vestrand, W. T, Wren, J. A, White, R. R, Evans, S. M, Casperson, D

“…The RAPid Telescopes for Optical Response (RAPTOR) system at Los Alamos National Laboratory observed GRB 050319 starting 25.4 s after gamma -ray emission…”
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The ROTSE‐III Robotic Telescope System by Akerlof, C. W., Kehoe, R. L., McKay, T. A., Rykoff, E. S., Smith, D. A., Casperson, D. E., McGowan, K. E., Vestrand, W. T., Wozniak, P. R., Wren, J. A., Ashley, M. C. B., Phillips, M. A., Marshall, S. L., Epps, H. W., Schier, J. A.

“…The observation of a prompt optical flash from GRB 990123 convincingly demonstrated the value of autonomous robotic telescope systems. Pursuing a program of…”
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The ASAS-SN bright supernova catalogue – I. 2013–2014 by Holoien, T W-S, Stanek, K Z, Kochanek, C S, Shappee, B J, Prieto, J L, Brimacombe, J, Bersier, D, Bishop, D W, Dong, Subo, Brown, J S, Danilet, A B, Simonian, G V, Basu, U, Beacom, J F, Falco, E, Pojmanski, G, Skowron, D M, Wozniak, P R, Avila, C G, Conseil, E, Contreras, C, Cruz, I, Fernandez, J M, Koff, R A, Guo, Zhen, Herczeg, G J, Hissong, J, Hsiao, E Y, Jose, J, Kiyota, S, Long, Feng, Monard, L AG, Nicholls, B, Nicolas, J, Wiethoff, W S

“…We present basic statistics for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) during its first year-and-a-half of…”
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Variability-selected QSO candidates in OGLE-II Galactic bulge fields by Sumi, T., Wozniak, P. R., Eyer, L., Dobrzycki, A., Udalski, A., Szymanski, M. K., Kubiak, M., Pietrzynski, G., Soszynski, I., Zebrun, K., Szewczyk, O., Wyrzykowski, L.

“…We present 97 QSO candidates in 48 Galactic bulge fields of the Optical Gravitational Lensing Experiment II (OGLE-II) covering ∼11 deg2, which are selected via…”
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