Ofek, E. O., Breslauer, B., Gal-Yam, A., Frail, D., Kasliwal, M. M., Kulkarni, S. R., ...
(abridged) Recently, a new class of radio transients in the 5-GHz band was detected by Bower et al. We present new deep near-Infrared (IR) observations of the field containing these transients, and...
Mysterious transients unmasked as the bright blue death throes of massive stars (2009)
Quimby, R. M., Kulkarni, S. R., Kasliwal, M. M., Gal-Yam, A., Arcavi, I., Sullivan, M., ...
Movies of the heavens, produced by modern synoptic imaging surveys, are revolutionizing the field of cosmic explosions in astronomy. Recent discoveries suggest entirely new pathways for the deaths of...
The Palomar Transient Factory: System Overview, Performance and First Results (2009)
Law, N. M., Kulkarni, S. R., Dekany, R. G., Ofek, E. O., Quimby, R. M., Nugent, P. E., ...
The Palomar Transient Factory (PTF) is a fully-automated, wide-field survey aimed at a systematic exploration of the optical transient sky. The transient survey is performed using a new 8.1 square...
The Collimation and Energetics of the Brightest Swift Gamma-Ray Bursts (2009)
Cenko, S. B., Frail, D. A., Harrison, F. A., Kulkarni, S. R., Nakar, E., Chandra, P., ...
Long-duration gamma-ray bursts (GRBs) are widely believed to be highly-collimated explosions (opening angle theta ~ 1-10 deg). As a result of this beaming factor, the true energy release from a GRB...
Perley, D. A., Cenko, S. B., Bloom, J. S., Butler, N. R., Kocevski, D., ...
In this work we present the first results of our imaging campaign at Keck Observatory to identify the host galaxies of "dark" gamma-ray bursts (GRBs), events with no detected optical afterglow or...
Dark Bursts in the Swift Era: The Palomar 60 Inch-Swift Early Optical Afterglow Catalog (2009)
Cenko, S. B., Kelemen, J., Harrison, F. A., Fox, D. B., Kulkarni, S. R., Kasliwal, M. M., ...
We present multicolor optical observations of long-duration γ-ray bursts (GRBs) made over a three-year period with the robotic Palomar 60 inch telescope (P60). Our sample consists of all 29 events...
Transients in the Local Universe (2009)
Kulkarni, S. R., Kasliwal, M. M.
Two different reasons make the search for transients in the nearby Universe (d < 200 Mpc) interesting and urgent. First, there exists a large gap in the luminosity of the brightest novae (-10 mag)...
M31N 2007-11d: A Slowly Rising, Luminous Nova in M31 (2009)
Shafter, A. W., Rau, A., Quimby, R. M., Kasliwal, M. M., Bode, M. F., Darnley, M. J., ...
We report a series of extensive photometric and spectroscopic observations of the luminous M31 nova M31N 2007-11d. Our photometric observations coupled with previous measurements show that the nova...
M31N 2007-11d: A Slowly-Rising, Luminous Nova in M31 (2008)
Shafter, A. W., Rau, A., Quimby, R. M., Kasliwal, M. M., Bode, M. F., Darnley, M. J., ...
We report a series of extensive photometric and spectroscopic observations of the luminous M31 nova M31N 2007-11d. Our photometric observations coupled with previous measurements show that the nova...
Dark Bursts in the Swift Era: The Palomar 60 inch-Swift Early Optical Afterglow Catalog (2008)
Cenko, S. B., Kelemen, J., Harrison, F. A., Fox, D. B., Kulkarni, S. R., Kasliwal, M. M., ...
We present multi-color optical observations of long-duration gamma-ray bursts (GRBs) made over a three year period with the robotic Palomar 60 inch telescope (P60). Our sample consists of all 29...
SN 2007ax : an extremely faint type Ia supernova (2008)
Kasliwal, M. M., Ofek, E. O., Gal-Yam, A., Rau, A., Brown, P. J., Cenko, S. B., ...
We present multiband photometric and optical spectroscopic observations of SN 2007ax, the faintest and reddest Type Ia supernova (SN Ia) yet observed. With M_B = − 15.9 and (B − V)_(max) = 1.2,...
GRB 070201: A possible soft gamma-ray repeater in M31 (2008)
Ofek, E. O., Muno, M., Quimby, R., Kulkarni, S. R., Stiele, H., Pietsch, W., ...
GRB 070201 was a bright, short-duration, hard-spectrum gamma-ray burst detected by the Interplanetary Network. Its error quadrilateral, which has an area of 0.124 deg^2, intersects some prominent...
SN2007ax : An Extremely Faint Type Ia Supernova (2008)
Kasliwal, M. M., Ofek, E. O., Gal-Yam, A., Rau, A., Brown, P. J., Cenko, S. B., ...
We present multi-band photometric and optical spectroscopic observations of SN2007ax, the faintest and reddest Type Ia supernova (SNIa) yet observed. With M_B = -15.9 and (B-V)max = 1.2, this SN is...
The type IIb SN 2008ax: the nature of the progenitor (2008)
Crockett, R. M., Eldridge, J. J., Smartt, S. J., Pastorello, A., Gal-Yam, A., Fox, D. B., ...
A source coincident with the position of the type IIb supernova (SN) 2008ax is identified in pre-explosion Hubble Space Telescope (HST) Wide Field Planetary Camera 2 observations in three optical...
The type IIb SN 2008ax: spectral and light curve evolution (2008)
Pastorello, A., Kasliwal, M. M., Crockett, R. M., Valenti, S., Arbour, R., Itagaki, K., ...
We present spectroscopy and photometry of the He-rich supernova (SN) 2008ax. The early-time spectra show prominent P-Cygni H lines, which decrease with time and disappear completely about two months...
GRB 070610: a curious galactic transient (2008)
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., Cameron, P. B., Nakar, E., Ofek, E. O., ...
GRB 070610 is a typical high-energy event with a duration of 5 s. Yet within the burst localization we detect a highly unusual X-ray and optical transient, Swift J195509.6+261406. We see...
GRB 070610: a curious galactic transient (2008)
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., Cameron, P. B., Nakar, E., Ofek, E. O., ...
GRB 070201: a possible soft gamma-ray repeater in M31 (2008)
Ofek, E. O., Muno, M., Quimby, R., Kulkarni, S. R., Stiele, H., Pietsch, W., ...
GRB 070201: A possible Soft Gamma Ray Repeater in M31 (2007)
Ofek, E. O., Muno, M., Quimby, R., Kulkarni, S. R., Stiele, H., Pietsch, W., ...
The gamma-ray burst (GRB) 070201 was a bright short-duration hard-spectrum GRB detected by the Inter-Planetary Network (IPN). Its error quadrilateral, which has an area of 0.124 sq. deg, intersects...
GRB070610 : A Curious Galactic Transient (2007)
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., Cameron, P. B., Nakar, E., Ofek, E. O., ...
GRB 070610 is a typical high-energy event with a duration of 5s.Yet within the burst localization we detect a highly unusual X-ray and optical transient, SwiftJ195509.6+261406. We see high amplitude...
Guzzo, L., Cassata, P., Finoguenov, A., Massey, R., Scoville, N. Z., Capak, P., ...
We have identified a large-scale structure at z~0.73 in the COSMOS field, coherently described by the distribution of galaxy photometric redshifts, an ACS weak-lensing convergence map and the...
Guzzo, L., Cassata, P., Finoguenov, A., Massey, R., Scoville, N. Z., Capak, P., ...
We have identified a large-scale structure at z~0.73 in the COSMOS field, coherently described by the distribution of galaxy photometric redshifts, an ACS weak-lensing convergence map and the...
SN 2006gy: An extremely luminous supernova in the galaxy NGC 1260 (2006)
Ofek, E. O., Cameron, P. B., Kasliwal, M. M., Gal-Yam, A., Rau, A., Kulkarni, S. R., ...
With an extinction-corrected V-band peak absolute magnitude of about -22, supernova (SN) 2006gy is probably the brightest SN ever observed. We report on multi-wavelength observations of this SN and...
The Incidence of Dwarf Novae in Large Area Transient Searches (2006)
Rau, A., Schwarz, R., Kulkarni, S. R., Ofek, E. O., Kasliwal, M. M., Brinkworth, C., ...
Understanding and quantifying the contribution of known classes of transient and variable sources is an important lesson to be learned from the manifold of pre-cursors programs of the near-future...
A photometric redshift of z = 6.39 0.12 for GRB 050904 (2006)
Haislip, J.B., Nysewander, M.C., Reichart, D., Levan, A., Tanvir, N., Cenko, S.B., ...
A photometric redshift of z = 6.39 ¿ 0.12 for GRB 050904 (2006)
Haislip, J.B., Nysewander, M.C., Reichart, D.E., Levan, A.J., Tanvir, N., Cenko, S.B., ...
Gamma-ray bursts (GRBs) and their afterglows are the most brilliant transient events in the Universe. Both the bursts themselves and their afterglows have been predicted to be visible out to...
The afterglow of GRB050709 and the nature of the short-hard gamma-ray bursts (2005)
Fox, D. B., Frail, D. A., Price, P. A., Kulkarni, S. R., Berger, E., Piran, T., ...
The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class, suspected on theoretical grounds to result from the coalescence of neutron...
Identifying silicate-absorbed ULIRGs at z~1-2 in the Bootes Field using Spitzer/IRS (2005)
Kasliwal, M. M., Charmandaris, V., Weedman, D., Houck, J. R., Floc'h, E. Le, Higdon, S. J. U., ...
Using the 16$\mu$m peakup imager on the Infrared Spectrograph (IRS) on Spitzer, we present a serendipitous survey of 0.0392 deg$^{2}$ within the area of the NOAO Deep Wide Field Survey in Bootes....
Confinement of supernova explosions in a collapsing cloud (2005)
Kasliwal, M. M., Lovelace, R. V. E., Houck, J. R.
We analyze the confining effect of cloud collapse on an expanding supernova shockfront. We solve the differential equation for the forces on the shockfront due to ram pressure, supernova energy, and...