3-11 July 2007
Merida, Mexico
Mexico/General timezone
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OG 2.2

Place

Location: Merida, Mexico
Room: Uxmal + Tulum (Holiday Inn)
Date: 6 Jul 10:30 - 11:55

Timetable | Contribution List

Displaying 7 contributions out of 7
Type: Oral Session: OG 2.2
Track: OG.2.2
The H.E.S.S. stereoscopic Cherenkov telescope system has observed the Crab nebula since January 2004 with the complete four telescope array. The stable signal from this pulsar wind nebula (PWN) has been used to verify the performance and calibration of the instrument because of its high flux compared to the H.E.S.S sensitivity. These observations allow us also to study the radiation mechan ... More
Presented by Dr. Bruno KHÉLIFI on 6/7/2007 at 16:06
Type: Oral Session: OG 2.2
Track: OG.2.2
The Crab is a standard calibration source for TeV gamma ray astronomy. Its energy spectrum extends beyond 10s of TeV, however, an open question is does the spectrum cutoff and at what energy. We present new results from Milagro analysis of the energy spectrum of the Crab nebula up to 100 TeV with good statistical determination. A robust algorithm was developed to estimate the energies of gam ... More
Presented by Prof. Gaurang YODH on 6/7/2007 at 16:18
Type: Oral Session: OG 2.2
Track: OG.2.2
The deeper and more extended scan of the Galactic Plane by H.E.S.S. during 2005 and 2006 has revealed a number of new point-like as well as extended sources. We will present and discuss cases where the VHE emission detected by HESS could be associated to pulsar wind nebulae around young pulsars in our Galaxy.
Presented by Dr. Arache DJANNATI-ATAÏ on 6/7/2007 at 15:54
Type: Oral Session: OG 2.2
Track: OG.2.2
The Crab nebula is the best known pulsar wind nebula and one of the most energetic sources of non-thermal radiation known in our Galaxy. It has been extensively studied over a broad range of energies from Radio to TeV gamma-rays. However, an observational gap in VHE-gamma-rays exists between the data available from satellite experiments and the currently running ground based experiments. The ... More
Presented by Mr. A. Nepomuk OTTE on 6/7/2007 at 16:30
Type: Oral Session: OG 2.2
Track: OG.2.2
The Crab Nebula has proven to be the best tool to calibrate and to characterize the performance of a Cherenkov telescope. Scientifically, it is interesting to measure its energy spectrum close to the Inverse-Compton peak where a deviation is expected from the power law seen at energies above 300 GeV. Additionally, it is important to search for pulsed emission from the Crab Pulsar at energies ... More
Presented by Ms. Ozlem CELIK on 6/7/2007 at 16:42
Type: Oral Session: OG 2.2
Track: OG.2.2
Between September 2006 and January 2007 the galactic binary source LS I +61 303 was observed at TeV energies by the VERITAS array of Cherenkov imaging telescopes in Southern Arizona. During this time, contemporaneous observations were taken at X-ray energies by both the SWIFT and RXTE satellite experiments. Although the X-ray properties of this source have been well studied in the past, ... More
Presented by Mr. Andy SMITH on 6/7/2007 at 15:42
Type: Oral Session: OG 2.2
Track: OG.2.2
In the last two years, the MAGIC telescope has performed an observational campaign on the X-ray binary LS I +61 303. Observations during the first year covered 6 orbital cycles and resulted in the first detection of the source above ~200 GeV. LS I +61 303 was also found to be variable. The second campaign spanned 4 more orbital cycles, covering orbital phases which had not been explored befor ... More
Presented by Ms. Nuria SIDRO MARTIN on 6/7/2007 at 15:30
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