... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Solar Flare Origin - critical analysis" Lev Pusti'lnik We analyze current approach to solar flare origin in 3 aspects: a. Pre-flare equilibrium state of current-magnetic structure above active region and its evolution to flare state, b. Possible reasons of stability loss with transition of system in flare state c. Flare energy release in turbulent current sheet and particle acceleration in this system. ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Предыдущий выпуск (N335) . ... Обсудить на форуме Scientific.RU . ... Подписка на рассылку обзоров на Subscribe.Ru . Обзоры препринтов astro-ph . ... Собственно обзоры препринтов. ... Ранее обзоры также были на Астронете и на Scientific.Ru . ... АНКи доступны на Астронете , а с 2006 по 2008 г. также на сайте Элементы.Ру . ... Ранее они также размещались на сайте Астронет и в архиве моих обозрений (кодировка KOI8) на сайте Scientific.Ru . ...

The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

... Observing . ... PPTA tasks . ... The purpose of this discussion is to identify and, if possible, fix some of the current observing issues at Parkes. The PPTA project currently uses the prototype digital filterbank system (PDFB1) and CPSR2 (sometimes the WBC). ... Consideration is being given to an RFI mitigation system that will work in conjunction with the PDFB2 and to changing the receiver (to observe in a cleaner band). The observing techniques etc. have been documented by John Sarkissian. ...

... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

... Science Users Information > Observing with ESO Telescopes > Phase 3 > Public Surveys Current and Obsolete Releases . ... Deep co-added, resampled images and associated source lists per band (2nd data release) - OBSOLETE . ... YJKs images and associated source lists for 2 survey tiles (2nd updating data release) - OBSOLETE . ... YJKs images and associated source lists for 7 survey tiles (3rd superseding data release) - OBSOLETE . ... ZYJHKs images and associated source lists (2nd data release) (**) ....

. Next: Installation Up: Release Notes Previous: Release Notes . љ This appendix contains on the following pages the Release Notes for the 94NOV release of MIDAS. A listing of the MIDAS NEWS-file which gives an overview of the modifications and improvements of the system for the present release has been added. Pascal Ballester . Fri Mar 24 17:17:52 MET 1995

... Astrophysics Group . ... VLSS . ... To facilitate access for UK and European users, MRAO is providing a UK Mirror of the VLA Low-frequency Sky Survey (VLSS), which is being produced in the US jointly by NRAO and the Naval Research Laboratory (NRL). ... A catalog of discrete sources on these images created by fitting a elliptical Guassians to all sources detected at the 5 sigma level or higher. ... This survey contains publicly available images and catalog information on over 1.8 million radio...

... One of this year's largest mass ejections from the Sun's atmosphere was recorded last Sunday by TESIS telescopes aboard the CORONAS-PHOTON satellite ( video - wmv 4.3 MB ). ... Over the course of a week, two gigantic solar prominences were simultaneously ejected from the surface of the Sun. ... Earth will not feel the Sun's influence either. ... The TESIS observatory ї TESIS: www.tesis.lebedev.ru . ... One of this year's largest mass ejections from the Sun's atmosphere (movie WMV, 4.3 MB) . ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Press Room . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Press Releases . ... Astronomy magazine editors are here to help enrich media and blogger coverage of meteor showers, space missions, and night-sky events. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... Data Analysis SAS News What is SAS? ... Back to Calibration Homepage In order to analyze the data collected with XMM-Newton you need some calibration files (Current Calibration File, see below) and a copy of the Science Analysis System (SAS) available here . ... Mirroring the Calibration Archive . ... CCF$ or use instead: package=xmm-ccf comment="The XMM-Newton calibration archive" site=xmm.esac.esa.int mode_copy=true max_delete_files=100% remote_dir=pub/ccf/constituents local_dir=/ccf get_patt=^*.\...

... Dr Jayanne English, Associate Professor of Physics in the Department of Physics and Astronomy at the University of Manitoba in Winnipeg, Canada will present the talk Cosmos versus Canvas: Tensions Between Art and Science in Astronomy Images in the Science Gallery, TCD, on August 7 th . ... Wednesday, 5 August 2009 00:15 . International Year of Astronomy, Ireland National Node . ...

Current Version of GALFA H I Reduction Software . The latest version of the GALFA Spectrometer Reduction (GSR) software is 2.4 . It can be found on the Arecibo Observatory computer system in the directory /share/galfa/gsr2.4/ . To use this new version at Arecibo, type the following before starting IDL: source /share/galfa/gsr2.4/.idlenv2.4 . For information on how to use this software, please see Josh's ``GALFA Pipeline'' document and others listed on the GALFA Documentation Page . ...

2012 VP113: A New Furthest Known Object in Solar System . ... NOAO Explanation: What is the furthest known object in our Solar System? The new answer is 2012 VP113 , an object currently over twice the distance of Pluto from the Sun. ... Some scientists hypothesize that the reason why objects like Sedna and 2012 VP113 have their present orbits is because they were gravitationally scattered there by a much larger object -- possibly a very distant undiscovered planet. ... NASA Official: Jay Norris. ...

... XPA and the now-defunct funtools have moved to GitHub! Please visit: . xpa @ https://github.com/ericmandel/xpa . funtools (not supported but ...) @ https://github.com/ericmandel/funtools for the latest version. Also available on GitHub: . ... The public release xpa version 2.1.15 is available here . Please upgrade at your convenience. ... Its available here . ... Software to benefit the astronomical community and especially the X-ray astronomy community. ... saord@cfa.harvard.edu . ...

Next: User provided reduced data, catalogues and atlases in the ISO Data Archive . ... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 22 . ... The Data Archive and Transfer System (DARTS) is a central database for the scientific data obtained by satellites of the Institute of Space and Astronautical Science (ISAS) in Japan. ... Figure 1: A new data management system at ISAS, including DARTS. ...

. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

The Sun 71 Pulsating and explosive energy release in solar ares V.V. Zaitsev1, S. Urpo2, and A.V. Stepanov3 2 Applied Physics Institute, Ulyanova 46, N.Novgorod 603600, Russia Metsahovi Radio Observatory, Metsahovintie 114, FIN-02540 Kylmala, Finland 3 Pulkovo observatory, St.Petersburg 196140, Russia 1 Radio and hard X-ray observations of solar ares reveal various time behaviour of the energy release. ... In the coronal part plasma beta 1 and the loop magnetic 72 The Sun eld is force-free. ...

... Infrared astronomy . ... Online resources . ... 1995 - . ... 1996 - . ... The Astronomical Journal . ... 1849 - 1997(ADS) . ... 1989 - 2013 . ... The Astrophysical Journal . ... The Astrophysical Journal Letters . ... The Astrophysical Journal Supplement Series . ... Communicating Astronomy with the Public (CAP) Journal . ... Journal for the History of Astronomy . ... Journal Geophysical Research A : Space Physics . ... Linux Journal ** For online access, please contact the Library . ... 1996 - 2013...