Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Griest, Kim"'
Autor:
Fedrow, Joseph M., Griest, Kim
A cosmological constant fits all current dark energy data, but requires two extreme fine tunings, both of which are currently explained by anthropic arguments. Here we discuss anti-anthropic solutions to one of these problems: the cosmic coincidence
Externí odkaz:
http://arxiv.org/abs/1309.0849
We present the analysis on our new limits of the dark matter (DM) halo consisting of primordial black holes (PBHs) or massive compact halo objects (MACHOs). We present a search of the first two years of publicly available Kepler mission data for pote
Externí odkaz:
http://arxiv.org/abs/1307.5798
Autor:
Pilachowski, Caty, Badenes, Carles, Bailey, Stephen, Barth, Aaron, Beaton, Rachel, Bell, Eric, Bernstein, Rebecca, Bian, Fuyan, Blanton, Michael, Blum, Robert, Bolton, Adam, Bond, Howard, Brodwin, Mark, Bullock, James, Carlin, Jeff, Chary, Ranga-Ram, Cinabro, David, Cooper, Michael, Cota, Jorge L. C., Davis, Marc, Dawson, Kyle, Dey, Arjun, Donahue, Megan, Drake, Jeremy, Ellingson, Erica, Faccioli, Lorenzo, Fan, Xiaohui, Ferguson, Harry, Gawiser, Eric, Geha, Marla, Giavalisco, Mauro, Gonzalez, Anthony, Griest, Kim, Grossan, Bruce, Guhathakurta, Raja, Harding, Paul, Heap, Sara R., Ho, Shirley, Howell, Steve, Jannuzi, Buell, Kalirai, Jason, Keeney, Brian, Kewley, Lisa, Kong, Xu, Lampton, Michael, Lin, Wei-Peng, de la Macorra, Axel, Macri, Lucas, Majewski, Steve, Martini, Paul, Massey, Phil, McSwain, Virginia, Miller, Adam A., Minniti, Dante, Modjaz, Maryam, Morrison, Heather, Moustakas, John, Myers, Adam, Najita, Joan, Newman, Jeffrey, Norman, Dara, Olsen, Knut, Pierce, Michael, Pope, Alexandra, Prescott, Moire, Reddy, Naveen, Reil, Kevin, Rest, Armin, Rhode, Katherine, Rockosi, Connie, Rudnick, Greg, Saha, Abhijit, Salzer, John, Sanders, David, Schlegel, David, Sesar, Branimir, Shields, Joseph, Silverman, Jeffrey, Simon, Josh, Stanford, Adam, Stern, Daniel, Storrie-Lombardi, Lisa, Suntzeff, Nicholas, Surace, Jason, Szalay, Alex, Ulmer, Melville, Weiner, Ben, Willman, Beth, Windhorst, Rogier, Wood-Vasey, Michael
This document summarizes the results of a community-based discussion of the potential science impact of the Mayall+BigBOSS highly multiplexed multi-object spectroscopic capability. The KPNO Mayall 4m telescope equipped with the DOE- and international
Externí odkaz:
http://arxiv.org/abs/1211.0285
Autor:
Cieplak, Agnieszka M., Griest, Kim
Primordial Black Holes (PBHs) remain a Dark Matter (DM) candidate of the Standard Model of Particle Physics. Previously, we proposed a new method of constraining the remaining PBH DM mass range using microlensing of stars monitored by NASA's Kepler m
Externí odkaz:
http://arxiv.org/abs/1210.7729
If the Dark Matter consists of primordial black holes (PBHs), we show that gravitational lensing of stars being monitored by NASA's Kepler search for extra-solar planets can cause significant numbers of detectable microlensing events. A search throug
Externí odkaz:
http://arxiv.org/abs/1109.4975
We attempt to measure possible miscalibration of the wavelength scale of the VLT-UVES spectrograph. We take spectra of QSO HE0515-4414 through the UVES iodine cell which contains thousands of well-calibrated iodine lines and compare these lines to th
Externí odkaz:
http://arxiv.org/abs/1004.3325
Autor:
Griest, Kim, Whitmore, Jonathan B., Wolfe, Arthur M., Prochaska, J. Xavier, Howk, J. Christopher, Marcy, Geoffrey W.
Publikováno v:
Astrophys.J.708:158-170,2010
We report on an attempt to accurately wavelength calibrate four nights of data taken with the Keck HIRES spectrograph on QSO PHL957, for the purpose of determining whether the fine structure constant was different in the past. Using new software and
Externí odkaz:
http://arxiv.org/abs/0904.4725
Autor:
Thomas, Christian L., Griest, Kim
Publikováno v:
Astrophys.J.640:299-307,2006
We reexamine the usefulness of fitting blended lightcurve models to microlensing photometric data. We find agreement with previous workers (e.g. Wozniak & Paczynski) that this is a difficult proposition because of the degeneracy of blend fraction wit
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507218
Autor:
Griest, Kim, Thomas, Christian L.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 359 (2005) 464-468
In a recent series of three papers, Belokurov, Evans, and Le Du, and Evans and Belokurov, reanalysed the MACHO collaboration data and gave alternative sets of microlensing events and an alternative optical depth to microlensing toward the Large Magel
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412443
Autor:
Griest, Kim
Publikováno v:
Phys.Rev. D66 (2002) 123501
It is a mystery why the density of matter and the density of vacuum energy are nearly equal today when they scale so differently during the expansion of the Universe. We suggest a paradigm that might allow for a non-anthropic solution to this cosmic
Externí odkaz:
http://arxiv.org/abs/astro-ph/0202052