ULXs, Microblazars, and the Unidentified EGERT Sources (open access)

ULXs, Microblazars, and the Unidentified EGERT Sources

We suggest that ultraluminous X-ray sources (ULXs) and some of the variable low latitude EGRET gamma-ray sources may be two different manifestations of the same underlying phenomena: high-mass microquasars with relativistic jets forming a small angle with the line of sight (i.e. microblazars). Microblazars with jets formed by relatively cool plasma (Lorentz factors for the leptons up to a few hundreds) naturally lead to ULXs. If the jet contains very energetic particles (high-energy cutoff above Lorentz factors of several thousands) the result is a relatively strong gamma-ray source. As pointed out by Kaufman Bernads, Romero & Mirabel (2002), a gamma-ray microblazar will always have an X-ray counterpart (although it might be relatively weak), whereas X-ray microblazars might have no gamma-ray counterparts.
Date: May 1, 2003
Creator: Butt, Y M; Romero, G E & Torres, D F
Object Type: Article
System: The UNT Digital Library
Transportation News, Volume 27, Number 9, May 2002 (open access)

Transportation News, Volume 27, Number 9, May 2002

Newsletter published by the Texas Department of Transportation for TxDOT employees including information about the organization, projects throughout the state, and other topics related to transportation in Texas.
Date: May 2002
Creator: Texas. Department of Transportation.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
TMB Bulletin, May 2020 (open access)

TMB Bulletin, May 2020

Newsletter of the Texas Medical Board describing news and events as well as updates about medical licenses, disciplinary actions, and other regulatory information.
Date: May 2020
Creator: Texas Medical Board
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 11, Number 34, Pages 2025-2128, May 6, 1986 (open access)

Texas Register, Volume 11, Number 34, Pages 2025-2128, May 6, 1986

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: May 6, 1986
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
APS Science 2007. (open access)

APS Science 2007.

This report provides research highlights from the Advanced Photon Source (APS). Although these highlights represent less than 10% of the published work from the APS in 2007, they give a flavor of the diversity and impact of user research at the facility. In the strategic planning the aim is to foster the growth of existing user communities and foresee new areas of research. This coming year finds the APS engaged in putting together, along with the users, a blueprint for the next five years, and making the case for a set of prioritized investments in beamlines, the accelerator, and infrastructure, each of which will be transformational in terms of scientific impact. As this is written plans are being formulated for an important user workshop on October 20-21, 2008, to prioritize strategic plans. The fruit from past investments can be seen in this report. Examples include the creation of a dedicated beamline for x-ray photon correlation spectroscopy at Sector 8, the evolution of dedicated high-energy x-ray scattering beamlines at sectors 1 and 11, a dedicated imaging beamline at Sector 32, and new beamlines for inelastic scattering and powder diffraction. A single-pulse facility has been built in collaboration with Sector 14 (BioCARS) …
Date: May 30, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library