Bulletin of the American Physical Society
Annual Meeting of the Four Corners Section of the APS
Volume 55, Number 9
Friday–Saturday, October 15–16, 2010; Ogden, Utah
Session D1: Astrophysics, High Energy II |
Hide Abstracts |
Chair: David Kieda, University of Utah Room: Ballroom C |
Friday, October 15, 2010 3:30PM - 3:42PM |
D1.00001: The StarBase Observatory Telescopes Janvida Rou, Derrick Kress, Ryan Price, Stephan LeBohec The two telescopes of the StarBase Observatory in Grantsville, Utah were deployed as a platform to evaluate technical approaches and potentials of reviving stellar intensity interferometry to be used in future gamma ray observatories. The StarBase telescopes are equipped with photo-multipliers, which allow for recording of both DC and AC components of star light. The DC signal is measured in the camera and the AC (300MHz) is communicated to the central building via analog optical fiber for correlation. The methods and equipment tested at the StarBase Observatory will be used to improve future gamma ray observatories which could operate as intensity interferometers. Large telescope arrays with intensity interferometry capabilities will reveal a great deal of information about hot stars by providing images with resolution better than 0.1mas. In this paper, we will present the status of the observatory. [Preview Abstract] |
Friday, October 15, 2010 3:42PM - 3:54PM |
D1.00002: VERITAS observation of flaring activity from the radio galaxy M87 C. Michelle Hui M87 is a giant radio galaxy located at 16Mpc away and is observed from radio to TeV gamma-rays. Its jet features are well studied in radio, optical, and X-ray. The proximity of M87 provides a unique opportunity for multi-wavelength observations to study the source and mechanisms of high energy emission from active galactic nuclei. The VERITAS atmospheric Cherenkov telescope array has monitored very high energy gamma-ray emission from M87 since 2007. Flaring activities were observed in 2008 in radio, X-ray, and gamma rays as a result of a long-term multi-wavelength monitoring study. The monitoring campaign is still ongoing, and we will present preliminary results from VERITAS observation of the 2010 flare. [Preview Abstract] |
Friday, October 15, 2010 3:54PM - 4:06PM |
D1.00003: A survey of the Milagro Sky for extragalactic TeV sources Ahron Barber, James Linnemann I am presenting the results from a survey of the Milagro sky map for extragalactic sources corresponding to locations of extragalactic objects from three different lists of TeV emitting objects: Fermi Bright Source List (3 month), TeVCat Catalog, and a list of objects from the VERITAS Blazar Key Science Project. Between the 3 lists, there are a total of 123 independent candidate sources to survey in the Milagro Sky. My analysis of these lists uses the False Discovery Rate Method (FDR) used previously by Milagro to analyze the galactic plane region of the Milagro sky map (Abdo et al., AJL 2009). The result from searching these lists found that only one source, Markarian 421, is detected by Milagro. Two other sources, Mrk 501 and IES 0502 +675, have a statistical significance near, but below, the boundary selected by FDR for these data. However, it is not evident that they are actually detected from the FDR analysis. [Preview Abstract] |
Friday, October 15, 2010 4:06PM - 4:18PM |
D1.00004: Measuring the Energy Spectrum with Telescope Array Surface Detector Dmitri Ivanov, Benjamin Stokes, Gordon Thomson The Telescope Array experiment (TA) is the largest cosmic ray experiment in the northern hemisphere. It consists of a surface detector (SD) of 507 scintillation counters and three fluorescence detector stations overlooking the SD. We are analyzing the SD data using a new technique, which consists of generating a Monte Carlo (MC) simulation of the SD that has all the characteristics of the actual data, comparing the MC with the data to verify the validity of the MC, and calculation of the SD aperture from the MC information. We will present our analysis, based solely upon the data, our method of generating CORSIKA showers without the problems caused by thinning, comparisons of MC with data, and the latest TA SD energy spectrum result. [Preview Abstract] |
Friday, October 15, 2010 4:18PM - 4:30PM |
D1.00005: VERITAS Observations of Galactic Sources Gary Finnegan The Milky Way Galaxy is full of violent activity. Stars that go super nova have left permanent scars on the arms of the Galaxy. The VERITAS collaboration has observed some of these scars, otherwise known as super nova remnants or pulsar wind nebulae. In this talk I will give an overview of some of the newest gamma ray detections in the Galaxy by VERITAS. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700