Next: This Work Previous: Rotation Periods of ZAMS Stars . ... There are currently several groups involved in the studies of the rotation periods of PMS stars. ... Overall, there are about 100 rotation periods known for PMS stars. ... Furthermore, the stars with periods near 8 days also tend to have infrared excesses which can be interpreted as arising from disks. ... In the first interpretation, the gap occurs because locking mechanism holds stars at a eight day rotation period. ...

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The velocity and mass distribution of clusters of galaxies from the CNOC1 cluster redshift survey . ... The resulting sample is ideally suited for an analysis of the internal velocity and mass distribution of clusters. Previous analyses of this dataset used the Jeans equation to model the projected velocity dispersion profile. However, the results of such an analysis always yield a strong degeneracy between the mass density profile and the velocity dispersion anisotropy profile. ...

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• Swara's Publications
• Model Fitting
• HST Call for Proposals

... About ATMoB . ... The Observing Committee is starting an Observing Awards Program to promote observing among the membership of the Amateur Telescope Makers of Boston. ... Participant must be a current member of the Amateur Telescope Makers of Boston . ... To qualify for your Observing Award Certificate, turn in your worksheet and drawings to an ATMoB Observing Committee member or observing@atmob.org . ... This Excel sheet has useful macros. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Comet SWAN Outburst . ... Star clusters and nebulae abound in the ancient northern constellation Auriga - a region that includes the interesting pair NGC 1931 (lower left) and IC 417. ... The Crab Nebula is cataloged as M1, the first object on Charles Messier's famous list of things which are not comets. ... Star EGGs in the Eagle Nebula . ... Where do stars form? ... But the skilled and careful astronomer also went on to discover star clusters, comets, asteroids, and clusters of galaxies. ...

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• The Hydra Cluster of Galaxies

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

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... Now primarily for Apogee cameras, XmCCD was developed initially for SBIG cameras and legacy support for them is still included in this version. SBIG ==== SBIG has provided the library used here. It is the latest one they offer and the files included allow support for Android and Mac OS X. This distribution of XmCCD includes source code to utilize the SBIG shared library libsbigudrv.so with a Motif-based graphical user interface. ... The open source code for this library is included here. ...

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• http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/README
• http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.2/README
• http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.0/README

... P2491 Date Received: 2009-Mar-09 11:01:45 Technical Page Proposal Type: General Category : Observation Category : Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 40 Hours 20 A 770-MHz Arecibo pulsar survey of globular clusters The scientific applications of pulsars in globular clusters are plentiful and include the first ever proof of the existence of ionized gas in ...

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• http://www.naic.edu/vscience/schedule/tpfiles/LorimertagP2557tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/LorimertagP2491tp.ps
• http://www.naic.edu/vscience/schedule/tpfiles/LorimertagP2557tp.ps

The radial distribution of metallicity of star-forming galaxies in a galaxy cluster can inform us about the mass assembly and enrichment history of the galaxy cluster. ... Both galaxy clusters are cool-core clusters at redshift z т?? ... The gas-phase metallicity of star- forming galaxies in MACS1115+01 exhibit anti-correlation with projected distance т??0.15 ТБ 0.08 dex/Mpc, whereas the radial metallicity distribution of RXJ1532+30 is statistically flat (т??0.09 ТБ 0.12 dex/Mpc). ...

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• COALA - Computational Astrophysics Laboratory
• Dougal Mackey - Research

... ALMA . ... ARC Staff at ESO . ... The European ALMA Regional Centre (ARC) provides the interface between the ALMA project and the European science community. ... Below you can read the latest Announcements from the European ARC Network.. ... The call for 1-mm Very Long Baseline Interferometry (VLBI) proposals to use phased ALMA at Band 6 in Cycle 4, in collaboration with the Event Horizon Telescope Consortium (EHTC), will be released to coincide with the ALMA Cycle 4 Call for Proposals in March 2016...

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• ESO - Thesis Topic: Studying the first galaxy clusters with ALMA
• ArtistтАЩs impression of the expected dark matter distribution around the Milky

... Cataclysmic Variables . ... The main aim of this survey is to discover new stellar binary systems with orbital periods less than ~80 min. ... The intensity of stellar objects can vary on a wide range of time-scales, ranging from seconds to months to years. ... Most of these surveys are sensitive to timescales longer than a day. ... For instance, the 0.3 deg x 0.3 deg survey using the Canada France Hawaii Telescope was sensitive to variations on timescales as short as ~8 min (Lott et al 2002) . ...

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• Definition of Scientific Misconduct
• Grubb 10 inch Refractor
• Technical Equipment

Magnetic Fields around Radio Galaxies Robert Laing (ESO) Laing et al. ... 2008) Negligible depolarization and 2 rotation Almost all Faraday effects must be due to foreground material How to fit depolarization caused by foreground Faraday rotation Complex polarization Rotation measure Integrate over a beam Observed RM for 0 2 rotation and depolarization Faraday rotation and depolarization 5.5 arcsec FWHM Faraday effects at high resolution FWHM = 1.5 ...

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• http://www.mrao.cam.ac.uk/~anthony/latex/Bahcall.ps
• Astrophysics Group AMI-Planck
• Bojan Nikolic -- Compiling CASA revisited

Simulating the Evolution of Stellar Clusters ? ... Resonant Exchange (few Myr) 4perturbed: 6000d, e=0.94 4CE + CE - DWD (0.35d) 2.0 MS 0.8 WD 4GR - merger after 10 Gyr M = 1.6 Msun Comparison with Data: Simulation of M67 H 12,000 single stars (KTG1993 IMF: 0.1 - 50 Msun ) H 12,000 binaries (q: uniform, e: thermal, a: flat-log, max 50 au) H Z = 0.02 H Circular orbit at Rgc = 8 kpc H Plummer Sphere in virial equilibrium 4M ~ 18700 Msun 4 Rt = 32 pc 4Trh ~ 200 Myr 4s ~ 3 km/s 4nc ~ 200 ...

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