... The routines implemented are CLUSTER which has 8 options for hierarchical clustering and PARTITION which carries out non--hierarchical clustering. ... The former is non--hierarchical clustering or partitioning. The latter is hierarchical clustering. Brief consideration will show that a sequence of n-1 agglomerations are needed to successively merge the two closest objects and/or clusters at each stage, so that we have a set of n (singleton) clusters, n-1 clusters, ..., 2 clusters, 1 cluster. ...

... We describe a tool in the PCIPS environment for finishing the job of globular cluster photometry started by DAOPHOT II: starting with the instrumental magnitudes derived by DAOPHOT II, DASHA can automatically produce final color-magnitude diagrams. ... DASHA can automate the whole process of globular cluster photometry, from instrumental magnitude lists produced by DAOPHOT II, to final color-magnitude diagrams. ... DASHA is oriented towards star lists produced by DAOPHOT II as source data. ...

... 110-114 F5.2 mas/year s_mu_ra Error of RA proper motion 116-120 F5.2 mas/year s_mu_dec Error of Decl proper motion 122-122 I1 --- Src Proper motion source (2) 125-129 F5.2 --- Corr PM errors correlation coefficient 133-138 F6.2 mas Pi HIPPARCOS parallax 140-144 F4.2 mas Pi_err Parallax error 147-152 I6 --- Hip_no HIPPARCOS number ------------------------------------------------------------------------------- Note (1) Sources of radial velocity data: 1 Moscow group measurements (Sov.Astron.Let., ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Australia Telescope 20GHz Survey . ... We describe a newly refined procedure for making optical identifications of radio sources in Abell cluster fields observed with the Molonglo Observatory Synthesis Telescope (MOST). ... We find 21 1.5% of the radio sources are identified with galaxies and 4.6 0.7% with QSO candidates in a sample of 927 radio sources in 27 cluster fields. ...

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

... Apache HTTP Server Version 2.4 . ... Status: . ... The number of worker serving requests . ... Using server-status to troubleshoot . ... A machine-readable version of the status file is available by accessing the page http://your.server.name/server-status?auto . ... The server-status page may be used as a starting place for troubleshooting a situation where your server is consuming all available resources (CPU or memory), and you wish to identify which requests or clients are causing the problem. ...

... GSAOI Home . ... Science . ... Deep J , H , and K imaging is required of Galactic and Magellanic Cloud analogs of the super star clusters identified in starburst galaxies. ... Images of the 30 Doradus star cluster in the Large Magellanic Cloud in the visible ( left panels ) and near-infrared ( right panels ) take from the ground ( top panels ) and with the Hubble Space Telescope ( bottom panels ). The fields of the GSAOI detectors are shown as four green squares in each frame. ...

Peremennye Zvezdy", . ... Max . Min . ... USNO-A2.0 1125-06868417 . ... Comm. ... USNO-A2.0 1125-06870029 . ... USNO-A2.0 1125-06870487 . ... Maximum: HJD(TT) 2455309.349 0.001. ... During observations of the field of the globular cluster NGC 5466, we discovered five new variable stars. ... For search and photometry of new variable stars, we applied VaST software by Sokolovsky and Lebedev (2005). The comparison star was USNO-A2.0 1125-06876791 = USNO-B1.0 1183-0234090 (?=14 h 05 m 40 s .57, ?= ...

... 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....

2014 May version . ... Green D. A., 2014 , Bulletin of the Astronomical Society of India, 42 , 47-58. ( .pdf , or arXiv.org:1409.0637 ) If you make use of the detailed version of the catalogue, then plaese also cite: . Green D. A., 2014, `A Catalogue of Galactic Supernova Remnants (2014 May version)' , Cavendish Laboratory, Cambridge, United Kingdom (available at "http://www.mrao.cam.ac.uk/surveys/snrs/" ). ... Copyright D. A. Green 2014. 25872nd access to this version of the catalogue. ...

home . ... The information on this page applies to the following DFO operational machines: . ... Home directories for the operational instrument accounts (as well as other important home directories such as quality, flowmgr etc) are served to the DFO Blade nodes and the QC cluster nodes via NFS from hrs01 . ... Since 2008-10-07 , the entire /ots directory structure (i.e. including these two vital home directory systems) is backed up to the Backup Server bu2 using the ONANU.backup script . ...

... On exposures affected by it, the warning InvalidObtValue is generated during the processing. This will be fixed with a software update, available in future SAS versions. ... If this problem occurs, you should process the affected pn exposures with SAS versions older than v6.0.0 (indeed, it is enough to run the SAS v5.4.1 epframes , and then, for instance, re-use the output files in a subsequent epchain run, specifying the parameter runepframes=N ). Pages maintained by SAS librarian . ...

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 . ...

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 23:56:37.5 . ЮД 2000 . +61:24:02 . l . 116.420 . b . -0.776 . diameter . 4.0' . (m - M) 0 . 12.2 0.17 . distance . 2750 220 pc . E(B - V) . 0.49 0.02 . log(t) . 8.2 0.05 . SAO 1-m, BVRI observations (777 measurements) VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

... The idea of an ALFA Virgo Survey is very excited. We should go for full coverage of the Virgo cluster, that is 800 square degrees. ... To interpret and understand the results of such a survey will require a lot of complimentary data. In Milano, we have developed the Galaxy On Line Database Milano Network or GOLDMiNe . ... This site provides on line selection of multiwavelength data for galaxies in both the Virgo cluster and the Coma supercluster. ...

... Posts tagged ?globular cluster? ... Posted by hlee . Someone emailed me for globular cluster data sets I used in a proceeding paper, which was about how to determine the multi-modality (multiple populations) based on well known and new information criteria without binning the luminosity functions. ... On the other hand, obtaining globular cluster data sets was easy because of available data archives such as VizieR . ... Category: arXiv , Astro , CHASC , Data Processing , Imaging , Jargon , Stars | ...

... After the 2nd World War, the Executive Committee of the International Astronomical Union (IAU) made two groups in Moscow responsible for catalogues of variable stars. ... Presently, the variable-star catalogue groups still exist within the Sternberg Astronomical Institute and the Institute of Astronomy of Russian Academy of Sciences . ... Elena Kazarovets (variable stars in open clusters, Peremennye Zvezdy journal, GCVS) . ... Nataliya N. Kireeva (variable stars, globular clusters, GCVS) . ...

This module provides an environment variable with a unique identifier for each request. ... The unique identifier is even unique across multiple machines in a properly configured cluster of machines. ... On Unix machines, Apache creates several children, the children process requests one at a time. ... To distinguish time we will use a Unix timestamp (seconds since January 1, 1970 UTC), and a 16-bit counter. ... The actual ordering of the encoding is: time stamp, IP address, pid, counter. ...

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