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2019

Searches after Gravitational Waves Using ARizona Observatories (SAGUARO): System Overview and First Results from Advanced LIGO/Virgo's Third Observing Run

Lundquist, M. J., Paterson, K., Fong, W., Sand, D. J., Andrews, J. E., Shivaei, I., Daly, P. N., Valenti, S., Yang, S., Christensen, E., Gibbs, A. R., Shelly, F., Wyatt, S., Eskandari, O., Kuhn, O., Amaro, R. C., Arcavi, I., Behroozi, P., Butler, N., Chomiuk, L. & 37 others, Corsi, A., Drout, M. R., Egami, E., Fan, X., Foley, R. J., Frye, B., Gabor, P., Green, E. M., Grier, C. J., Guzman, F., Hamden, E., Howell, D. A., Jannuzi, B. T., Kelly, P., Milne, P., Moe, M., Nugent, A., Olszewski, E., Palazzi, E., Paschalidis, V., Psaltis, D., Reichart, D., Rest, A., Rossi, A., Schroeder, G., Smith, P. S., Smith, N., Spekkens, K., Strader, J., Stark, D. P., Trilling, D., Veillet, C., Wagner, M., Weiner, B., Wheeler, J. C., Williams, G. G. & Zabludoff, A., Aug 20 2019, In : Astrophysical Journal Letters. 881, 2, L26.

Research output: Contribution to journalArticle

1 Scopus citations
2018

SN 2013fs and SN 2013fr: Exploring the circumstellar-material diversity in Type II supernovae

Bullivant, C., Smith, N., Williams, G. G., Mauerhan, J. C., Andrews, J. E., Fong, W. F., Bilinski, C., Kilpatrick, C. D., Milne, P. A., Fox, O. D., Cenko, S. B., Filippenko, A. V., Zheng, W. K., Kelly, P. L. & Clubb, K. I., May 11 2018, In : Monthly Notices of the Royal Astronomical Society. 476, 2, p. 1497-1518 22 p.

Research output: Contribution to journalArticle

7 Scopus citations
2017

Multiepoch Spectropolarimetry of SN 2011fe

Milne, P. A., Williams, G. G., Porter, A., Smith, P. S., Smith, N., Leising, M. D., Jannuzi, B. T. & Green, E. M., Jan 20 2017, In : Astrophysical Journal. 835, 1, 100.

Research output: Contribution to journalArticle

1 Scopus citations
2016

ASYMMETRIES in SN 2014J NEAR MAXIMUM LIGHT REVEALED THROUGH SPECTROPOLARIMETRY

Porter, A. L., Leising, M. D., Williams, G. G., Milne, P., Smith, P., Smith, N., Bilinski, C., Hoffman, J. L., Huk, L. & Leonard, D. C., Sep 1 2016, In : Astrophysical Journal. 828, 1, 24.

Research output: Contribution to journalArticle

9 Scopus citations
2015

PTF11iqb: Cool supergiant mass-loss that bridges the gap between Type IIn and normal supernovae

Smith, N., Mauerhan, J. C., Cenko, S. B., Kasliwal, M. M., Silverman, J. M., Filippenko, A. V., Gal-Yam, A., Clubb, K. I., Graham, M. L., Leonard, D. C., Horst, J. C., Williams, G. G., Andrews, J. E., Kulkarni, S. R., Nugent, P., Sullivan, M., Maguire, K., Xu, D. & Ben-Ami, S., 2015, In : Monthly Notices of the Royal Astronomical Society. 449, 2, p. 1876-1896 21 p.

Research output: Contribution to journalArticle

55 Scopus citations

Spectropolarimetry of SN 2011dh in M51: Geometric insights on a Type IIb supernova progenitor and explosion

Mauerhan, J. C., Williams, G. G., Leonard, D. C., Smith, P. S., Filippenko, A. V., Smith, N., Hoffman, J. L., Huk, L., Clubb, K. I., Silverman, J. M., Cenko, S. B., Milne, P., Gal-Yam, A. & Ben-Ami, S., 2015, In : Monthly Notices of the Royal Astronomical Society. 453, 4, p. 4467-4484 18 p.

Research output: Contribution to journalArticle

18 Scopus citations
2014

Multi-epoch spectropolarimetry of SN 2009ip: Direct evidence for aspherical circumstellar material

Mauerhan, J., Williams, G. G., Smith, N., Smith, P. S., Filippenko, A. V., Hoffman, J. L., Milne, P., Leonard, D. C., Clubb, K. I., Fox, O. D. & Kelly, P. L., 2014, In : Monthly Notices of the Royal Astronomical Society. 442, 2, p. 1166-1180 15 p.

Research output: Contribution to journalArticle

48 Scopus citations
2013

GRB 091024A and the nature of ultra-long gamma-ray bursts

Virgili, F. J., Mundell, C. G., Pal'Shin, V., Guidorzi, C., Margutti, R., Melandri, A., Harrison, R., Kobayashi, S., Chornock, R., Henden, A., Updike, A. C., Cenko, S. B., Tanvir, N. R., Steele, I. A., Cucchiara, A., Gomboc, A., Levan, A., Cano, Z., Mottram, C. J., Clay, N. R. & 13 others, Bersier, D., Kopač, D., Japelj, J., Filippenko, A. V., Li, W., Svinkin, D., Golenetskii, S., Hartmann, D. H., Milne, P. A., Williams, G. G., O'Brien, P. T., Fox, D. B. & Berger, E., Nov 20 2013, In : Astrophysical Journal. 778, 1, 54.

Research output: Contribution to journalArticle

57 Scopus citations

Supersoft X-rays reveal a classical nova in the M 31 globular cluster Bol 126

Henze, M., Pietsch, W., Haberl, F., Della Valle, M., Riffeser, A., Sala, G., Hatzidimitriou, D., Hofmann, F., Hartmann, D. H., Koppenhoefer, J., Seitz, S., Williams, G. G., Hornoch, K., Itagaki, K., Kabashima, F., Nishiyama, K., Xing, G., Lee, C. H., Magnier, E. & Chambers, K., 2013, In : Astronomy and Astrophysics. 549, A120.

Research output: Contribution to journalArticle

13 Scopus citations
2012

Dark Sky Collaborators: Arizona (AZ) Observatories, Communities, and Businesses

Del Castillo, E. A., Corbally, C., Falco, E. E., Green, R. F., Hall, J. C. & Williams, G. G., 2012, In : Proceedings of the International Astronomical Union. 10, H16, p. 747 1 p.

Research output: Contribution to journalArticle

2011

Monster in the dark: The ultraluminous GRB 080607 and its dusty environment

Perley, D. A., Morgan, A. N., Updike, A., Yuan, F., Akerlof, C. W., Miller, A. A., Bloom, J. S., Cenko, S. B., Li, W., Filippenko, A. V., Prochaska, J. X., Kann, D. A., Tanvir, N. R., Levan, A. J., Butler, N. R., Christian, P., Hartmann, D. H., Milne, P., Rykoff, E. S., Rujopakarn, W. & 2 others, Wheeler, J. C. & Williams, G. G., Feb 2011, In : Astronomical Journal. 141, 2

Research output: Contribution to journalArticle

13 Scopus citations
2010

Evidence for supernova-synthesized dust from the rising afterglow of GRB 071025 at z ∼ 5

Perley, D. A., Bloom, J. S., Klein, C. R., Covino, S., Minezaki, T., Woźniak, P., Vestrand, W. T., Williams, G. G., Milne, P., Butler, N. R., Updike, A. C., Krühler, T., Afonso, P., Antonelli, A., Cowie, L., Ferrero, P., Greiner, J., Hartmann, D. H., Kakazu, Y., Küpcü Yoldaş, A. & 4 others, Morgan, A. N., Price, P. A., Prochaska, J. X. & Yoshii, Y., Aug 2010, In : Monthly Notices of the Royal Astronomical Society. 406, 4, p. 2473-2487 15 p.

Research output: Contribution to journalArticle

67 Scopus citations
2009

From shock breakout to peak and beyond: Extensive panchromatic observations of the type Ib supernova 2008D associated with swift x-ray transient 080109

Modjaz, M., Li, W., Butler, N., Chornock, R., Perley, D., Blondin, S., Bloom, J. S., Filippenko, A. V., Kirshner, R. P., Kocevski, D., Poznanski, D., Hicken, M., Foley, R. J., Stringfellow, G. S., Berlind, P., Barrado Y Navascues, D., Blake, C. H., Bouy, H., Brown, W. R., Challis, P. & 21 others, Chen, H., De Vries, W. H., Dufour, P., Falco, E., Friedman, A., Ganeshalingam, M., Garnavich, P., Holden, B., Illingworth, G., Lee, N., Liebert, J., Marion, G. H., Olivier, S. S., Prochaska, J. X., Silverman, J. M., Smith, N., Starr, D., Steele, T. N., Stockton, A., Williams, G. G. & Wood-Vasey, W. M., 2009, In : Astrophysical Journal. 702, 1, p. 226-248 23 p.

Research output: Contribution to journalArticle

162 Scopus citations

Synchronous optical and radio polarization variability in the blazar OJ287

D'Arcangelo, F. D., Marscher, A. P., Jorstad, S. G., Smith, P. S., Larionov, V. M., Hagen-Thorn, V. A., Williams, G. G., Gear, W. K., Clemens, D. P., Sarcia, D., Grabau, A., Tollestrup, E. V., Buie, M. W., Taylor, B. & Dunham, E., 2009, In : Astrophysical Journal. 697, 2, p. 985-995 11 p.

Research output: Contribution to journalArticle

29 Scopus citations

The first two transient supersoft X-ray sources in M 31 globular clusters and the connection to classical novae

Henze, M., Pietsch, W., Haberl, F., Sala, G., Quimby, R., Hernanz, M., Della Valle, M., Milne, P., Williams, G. G., Burwitz, V., Greiner, J., Stiele, H., Hartmann, D. H., Kong, A. K. H. & Hornoch, K., Jun 2009, In : Astronomy and Astrophysics. 500, 2, p. 769-779 11 p.

Research output: Contribution to journalArticle

23 Scopus citations

The very short supersoft X-ray state of the classical nova M31N 2007-11a

Henze, M., Pietsch, W., Sala, G., Della Valle, M., Hernanz, M., Greiner, J., Burwitz, V., Freyberg, M. J., Haberl, F., Hartmann, D. H., Milne, P. & Williams, G. G., May 2009, In : Astronomy and Astrophysics. 498, 2

Research output: Contribution to journalArticle

9 Scopus citations
2008

The inner jet of an active galactic nucleus as revealed by a radio-to-γ-ray outburst

Marscher, A. P., Jorstad, S. G., D'Arcangelo, F. D., Smith, P. S., Williams, G. G., Larionov, V. M., Oh, H., Olmstead, A. R., Aller, M. F., Aller, H. D., McHardy, I. M., Lähteenmäki, A., Tornikoski, M., Valtaoja, E., Hagen-Thorn, V. A., Kopatskaya, E. N., Gear, W. K., Tosti, G., Kurtanidze, O., Nikolashvili, M. & 3 others, Sigua, L., Miller, H. R. & Ryle, W. T., Apr 24 2008, In : Nature. 452, 7190, p. 966-969 4 p.

Research output: Contribution to journalArticle

439 Scopus citations

The rapidly flaring afterglow of the very bright and energetic GRB 070125

Updike, A. C., Haislip, J. B., Nysewander, M. C., Fruchter, A. S., Kann, D. A., Klose, S., Milne, P. A., Williams, G. G., Zheng, W., Hergenrother, C. W., Prochaska, J. X., Halpern, J. P., Mirabal, N., Thorstensen, J. R., Van Der Horst, A. J., Starling, R. L. C., Racusin, J. L., Burrows, D. N., Kuin, N. P. M., Roming, P. W. A. & 35 others, Bellm, E., Hurley, K., Li, W., Filippenko, A. V., Blake, C., Starr, D., Falco, E. E., Brown, W. R., Dai, X., Deng, N., Xin, L., Qiu, Y., Wei, J., Urata, Y., Nanni, D., Maiorano, E., Palazzi, E., Greco, G., Bartolini, C., Guarnieri, A., Piccioni, A., Pizzichini, G., Terra, F., Misra, K., Bhatt, B. C., Anupama, G. C., Fan, X., Jiang, L., Wuers, R. A. M. J., Reichart, D. E., Eid, H. A., Bryngelson, G., Puls, J., Goldthwaite, R. C. & Hartmann, D. H., Sep 20 2008, In : Astrophysical Journal. 685, 1, p. 361-375 15 p.

Research output: Contribution to journalArticle

23 Scopus citations
2007

Highly polarized optically selected BL Lacertae objects

Smith, P. S., Williams, G. G., Schmidt, G. D., Diamond-Stanic, A. M. & Means, D. L., Jul 1 2007, In : Astrophysical Journal. 663, 1 I, p. 118-124 7 p.

Research output: Contribution to journalArticle

26 Scopus citations

Rapid multiwaveband polarization variability in the quasar PKS 0420-014: Optical emission from the compact radio jet

D'Arcangelo, F. D., Marscher, A. P., Jorstad, S. G., Smith, P. S., Larionov, V. M., Hagen-Thorn, V. A., Kopatskaya, E. N., Williams, G. G. & Gear, W. K., Apr 20 2007, In : Astrophysical Journal. 659, 2 II

Research output: Contribution to journalArticle

47 Scopus citations
2006

A photometric redshift of z = 6.39 ± 0.12 for GRB 050904

Haislip, J. B., Nysewander, M. C., Reichart, D. E., Levan, A., Tanvir, N., Cenko, S. B., Fox, D. B., Price, P. A., Castro-Tirado, A. J., Gorosabel, J., Evans, C. R., Figueredo, E., MacLeod, C. L., Kirschbrown, J. R., Jelinek, M., Guziy, S., De Ugarte Postigo, A., Cypriano, E. S., LaCluyze, A., Graham, J. & 47 others, Priddey, R., Chapman, R., Rhoads, J., Fruchter, A. S., Lamb, D. Q., Kouveliotou, C., Wijers, R. A. M. J., Bayliss, M. B., Schmidt, B. P., Soderberg, A. M., Kulkarni, S. R., Harrison, F. A., Moon, D. S., Gal-Yam, A., Kasliwal, M. M., Hudec, R., Vitek, S., Kubanek, P., Crain, J. A., Foster, A. C., Clemens, J. C., Bartelme, J. W., Canterna, R., Hartmann, D. H., Henden, A. A., Klose, S., Park, H. S., Williams, G. G., Rol, E., O'Brien, P., Bersier, D., Prada, F., Pizarro, S., Maturana, D., Ugarte, P., Alvarez, A., Fernandez, A. J. M., Jarvis, M. J., Moles, M., Alfaro, E., Ivarsen, K. M., Kumar, N. D., Mack, C. E., Zdarowicz, C. M., Gehrels, N., Barthelmy, S. & Burrows, D. N., Mar 9 2006, In : Nature. 440, 7081, p. 181-183 3 p.

Research output: Contribution to journalArticle

122 Scopus citations

Early time chromatic variations in the wind-swept medium of GRB 021211 and the faintness of its afterglow

Nysewander, M. C., Reichart, D. E., Park, H. S., Williams, G. G., Kinugasa, K., Lamb, D. Q., Henden, A. A., Klose, S., Kato, T., Harper, A., Yamaoka, H., Laws, C., Torii, K., York, D. G., Barentine, J. C., Dembicky, J., Mcmillan, R. J., Moran, J. A., Hartmann, D. H., Ketzeback, B. & 11 others, Bayliss, M. B., Bartelme, J. W., Crain, J. A., Foster, A. C., Schwartz, M., Holvorcem, P., Price, P. A., Canterna, R., Crew, G. B., Ricker, G. R. & Barthelmy, S. D., Nov 10 2006, In : Astrophysical Journal. 651, 2 I, p. 994-1004 11 p.

Research output: Contribution to journalArticle

3 Scopus citations

Late light curves of normally luminous Type Ia supernovae

Lair, J. C., Leising, M. D., Milne, P. A. & Williams, G. G., Oct 2006, In : New Astronomy Reviews. 50, 7-8, p. 570-573 4 p.

Research output: Contribution to journalArticle

1 Scopus citations

Late light curves of normal Type Ia supernovae

Lair, J. C., Leising, M. D., Milne, P. A. & Williams, G. G., Nov 2006, In : Astronomical Journal. 132, 5, p. 2024-2033 10 p.

Research output: Contribution to journalArticle

37 Scopus citations

The faint afterglow and host galaxy of the short-hard GRB 060121

Levan, A. J., Tanvir, N. R., Fruchter, A. S., Rol, E., Fynbo, J. P. U., Hjorth, J., Williams, G. G., Bergeron, E., Bersier, D., Bremer, M., Gray, T., Jakobsson, P., Nilsson, K., Olszewski, E. W., Priddey, R. S., Rafferty, D. & Rhoads, J., Sep 1 2006, In : Astrophysical Journal. 648, 1 II

Research output: Contribution to journalArticle

52 Scopus citations
2004

Super-LOTIS (Livermore Optical Transient Imaging System)

Pérz-Ramírez, D., Park, H. S. & Williams, G. G., 2004, In : Astronomische Nachrichten. 325, 6-8, p. 667-668 2 p.

Research output: Contribution to journalArticle

6 Scopus citations
2003

A search for period changes in δ Scuti stars with the super-LOTIS sky patrol system

Blake, C., Fox, D. W., Park, H. S. & Williams, G. G., Feb 2003, In : Astronomy and Astrophysics. 399, 1, p. 365-372 8 p.

Research output: Contribution to journalArticle

5 Scopus citations

Evolution of the polarization of the optical afterglow of the γ-ray burst GRB030329

Greiner, J., Klose, S., Reinsch, K., Schmid, H. M., Sari, RE., Hartmann, D. H., Kouveliotou, C., Rau, A., Palazzi, E., Straubmeier, C., Stecklum, B., Zharikov, S., Tovmassian, G., Bärnbantner, O., Ries, C., Jehin, E., Henden, A., Kaas, A. A., Grav, T., Hjorth, J. & 6 others, Pedersen, H., Wijers, R. A. M. J., Kaufer, A., Park, H. S., Williams, G. G. & Reimer, O., Nov 13 2003, In : Nature. 426, 6963, p. 157-159 3 p.

Research output: Contribution to journalArticle

95 Scopus citations

The spectroscopic variability of GRB 021004

Matheson, T., Garnavich, P. M., Foltz, C., West, S., Williams, G. G., Falco, E., Calkins, M. L., Castander, F. J., Gawiser, E., Jha, S., Bersier, D. & Stanek, K. Z., Jan 1 2003, In : Astrophysical Journal. 582, 1 II

Research output: Contribution to journalArticle

34 Scopus citations
2002

Afterglow upper limits for four short-duration, hard spectrum gamma-ray bursts

Hurley, K., Berger, E., Castro-Tirado, A., Castro Cerón, J. M., Cline, T., Feroci, M., Frail, D. A., Frontera, F., Masetti, N., Guidorzi, C., Montanari, E., Hartmann, D. H., Henden, A., Levine, S. E., Mazets, E., Golenetskii, S., Frederiks, D., Morrison, G., Oksanen, A., Moilanen, M. & 5 others, Park, H. S., Price, P. A., Prochaska, J., Trombka, J. & Williams, G. G., Mar 1 2002, In : Astrophysical Journal. 567, 1 I, p. 447-453 7 p.

Research output: Contribution to journalArticle

43 Scopus citations

Lotis, super-lotis, sloan digital sky survey, and tautenburg observations of GRB 010921

Park, H. S., Williams, G. G., Hartmann, D. H., Lamb, D. Q., Lee, B. C., Tucker, D. L., Klose, S., Stecklum, B., Henden, A., Adelman, J., Barthelmy, S. D., Briggs, J. W., Brinkmann, J., Chen, B., Cline, T., Csabai, I., Gehrels, N., Harvanek, M., Hennessy, G. S., Hurley, K. & 19 others, Ivezić, Ž., Kent, S., Kleinman, S. J., Krzesinski, J., Lindsay, K., Long, D., Nemiroff, R., Neilsen, E. H., Nitta, A., Newberg, H. J., Newman, P. R., Perez, D., Periera, W., Schneider, D. P., Snedden, S. A., Stoughton, C., Berk, D. E. V., York, D. & Ziock, K., Jun 1 2002, In : Astrophysical Journal. 571, 2 II

Research output: Contribution to journalArticle

15 Scopus citations

The bright optical afterglow of the long GRB 001007

Castro Cerón, J. M., Castro-Tirado, A. J., Gorosabel, J., Hjorth, J., Fynbo, J. U., Jensen, B. L., Pedersen, H., Andersen, M. I., López-Corredoira, M., Suárez, O., Grosdidier, Y., Casares, J., Pérez-Ramírez, D., Milvang-Jensen, B., Mallén-Ornelas, G., Fruchter, A., Greiner, J., Pian, E., Vreeswijk, P. M., Barthelmy, S. D. & 18 others, Cline, T., Frontera, F., Kaper, L., Klose, S., Kouveliotou, C., Hartmann, D. H., Hurley, K., Masetti, N., Mazets, E., Palazzi, E., Park, H. S., Rol, E., Salamanca, I., Tanvir, N., Trombka, J. I., Wijers, R. A. M. J., Williams, G. G. & Van Den Heuvel, E., Oct 2002, In : Astronomy and Astrophysics. 393, 2, p. 445-451 7 p.

Research output: Contribution to journalArticle

5 Scopus citations