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This document presents STScI policy for granting formal changes, additions, andalterations to accepted HST programs, as well as for repetitions of failed observations. Four types of request may be made by a GO, GTO, CS, or PC. ... The first type is a HOPR (HST Operations Problem Report), which describes an operational problem that occurred in obtaining data and which requests a repetition of the lost observation. ...

Peremennye Zvezdy ( Variable Stars ) 35 , No. ... We present the results of our new observations of QS Draconis, a recently discovered double-mode high-amplitude Scuti variable, HADS(B) type. ... Our CCD observations in the Johnson bands were performed at the Tien Shan Astronomical Observatory of the V.G. Fesenkov Astrophysical Institute, at the altitude of 2750 m above the sea level. ... The finding chart (Fig. 1) identifies the variable star, comparison star, and check star. ... Fig. ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... PhD Yale University, Astronomy, 2015 . ... MS, MPhil Yale University, Astronomy, 2011 . ... Plunkett, Adele L. ; Arce, H��ctor G.; Corder, Stuartt A.; Dunham, Michael M.; Mardones, Diego; Garay, Guido 2014, ApJ, 803, 22, ������Assessing molecular outflows and turbulence in the protostellar cluster Serpens South��� . ... Department of Astronomy Seminar, Universidad de Chile, Santiago, Chile April 2013 . ... Yale-University of Chile Meeting, New Haven, CT December 2011 . ...

Performed Observations sorted by RA / DEC . ... XMM-Newton SOC Home Page Conferences & Meetings . ... Data Analysis SAS News What is SAS? ... Types: CAL : Target of routine calibration plan A : Target accepted for AO-1/AO-2 with priority A B : Target accepted for AO-1/AO-2 with priority B GT : Target of guaranteed time program T(*) : Triggered target candidate accepted for AO-1/2 with priority A or B Alpha and Delta are up-dated in comparison to the coordinates previously published on the Web-pages. ...

... Outreach . ... I'm a PhD student at the Australian National University's Mt Stromlo observatory and am part of the Australia Telescope National Facility (ATNF) graduate program. I study the properties on nearby galaxies and investigate the evolution of the local universe. ... I run the RSAA Student Outreach Group which invites school children to participate in free astronomy outreach evenings. ... Copyright 2007 Emma Kirby. ... All Photos were taken by Emma Kirby unless otherwise stated. ...

Next: Direct Monitoring of T Tauri Stars Previous: X--ray Activity and PMS Stars . Pointed EINSTEIN observations of TTs in the Taurus--Auriga star forming region (SFR) detected five serendipitous sources in the field (Feigelson & Kriss 1981 and Walter & Kuhi 1981). ... Walter (1986) called these objects naked T Tauri stars (nTTs; Walter 1986, Walter et al . ... The catalog of Herbig & Bell (1988) distinguished between cTTs and weak--lined T Tauri stars (wTTs) instead of nTTs. ...

... Deep Radio and X-Ray observations of Pictor A . ... A study of deep observations of Pictor A in radio with the Australia Telescope Compact Array (ATCA) and in X-rays with the Chandra X-ray observatory over a time span of 15 years has just been accepted for publication in Monthly Notices: Hardcastle et al. ... This has provided further evidence of time variability in the jet and confirmed previous tentative evidence of a counter-jet. ... today * ATNF | ... ATCA | ...

Publication list . ... C. Bruns, J.Kerp, L. Staveley-Smith, U.Meabold, M.E., Putman, R.F., Haynes, P.M.W., Kalberla, E. Muller, M.D. Filipovic . ... A Statistical Investigation of H I in the Magellanic Bridge. ... astro-ph/0305236, accepted for publication in MNRAS . High resolution H I observations of the Western Magellanic Bridge . Muller, E. Staveley-Smith, L. Zealey, W. Stanimirovic, S. 2003, MNRAS, 39, 105 . ... Muller, E. Staveley-Smith, L. Zealey, W. J. 2003, MNRAS, 338, 609 . ...

... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... We present here ASTROVIRTEL : a project supported by the European Commission within the ``Enhanced Access to Research Infrastructures'' action. ASTROVIRTEL is already being used by European astronomers as a Virtual Telescope, enabling them to access a huge amount of astronomical data with the support of the ASTROVIRTEL personnel. ... The ASTROVIRTEL Cycle I Call-for-Proposal deadline was June 15, 2000. ...

... Optical Counterparts for 70,000 Radio Sources: APM Identifications for the FIRST Radio Survey . ... We describe a program to identify optical counterparts to radio sources from the VLA FIRST survey using the Cambridge APM scans of the POSS-I plates. We use radio observations covering 4150 square degrees of the north Galactic cap to a 20 cm flux density threshold of 1.0 mJy; the 382,892 sources detected all have positional uncertainties of Format for the Table of FIRST-APM Optical Counterparts . ...

Astronomy Discussion Forums . Forums: . ... Observation Report 03/15/03 From Coyle Field . ... Post Message | ... Observation Report 03/15/03 from Coyle Field . ... It?s been a while since I could write a decent observation report. ... Coyle Field is a great sight. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The Si VIII line width measurements and N e estimates based on SUMER observations are combined with LASCO and UVCS output to provide an overview of its variations with height above a polar coronal hole. ... Combining the Si VIII half width at 1/e of the peak intensity with the UVCS O VI half width, we find a small increase of the half width from 1 to 1.2 , then a plateau until 1.5 , thereafter a sharp increase until 2 , finally a more gradual increase reaching 550 km s -1 at 3.5 . ...

... Files in red?history) . ... Solar Wind . ... In sunspot regions field lines form arches which hold back the solar wind, but in the "holes" in between they extend outwards and allow the plasma to accelerate unimpeded. ... It was therefore expected that the solar wind above the Sun's poles would be relatively fast and smooth-flowing. ... All planetary orbits lie approximately in the same flat plane as that of the Earth ("plane of the ecliptic"), which is also close to the Sun's equatorial plane. ...

Not everyone accepted Parker's theory of the solar wind when it was first published in 1958, and it was debated until observations confirmed it. ... Lower-velocity solar wind comes from regions in between sunspot regions and coronal holes . ... It was therefore expected that the solar wind above the Sun's poles would be relatively fast and smooth-flowing. ... The Ulysses mission has its own home page on the web, leading to many related files. ... Exploration" home page (index) Glossary . ...

... Observations . ... Natural Satellites Data Center. ... Nomenclature of satellites | ... Inner satellites of Jupiter . ... Inner satellites . Mutual events of the Galileans . ... Inner satellites of Saturn . Main satellites of Saturn . ... Mutual events of the main satellites . Inner satellites of Uranus . Main satellites of Uranus . ... Mutual events of the Uranian satellites . Inner satellites of Neptune . Main satellites of Neptune . Outer satellites of Neptune . ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

Figure 6. The squares show the telescope defocus data from August 15 (Figure 5) plotted as a function of time. For the defocus data the y-axis is in units of ?m. The circles show the telescope altitude in degrees as a function of time. As expected from the good linear correlation seen in Figure 5, the data very much look like they are driven by altitude changes. ... Second, notice that the defocus data consists of pairs of points which were taken at nearly the same telescope altitude. ...