... 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....

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ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

Among the functions the Cluster Database supplies the tclets are usefull tool for various researches (for example, for identification of radio and of optical sources). ... Three type of object are present on the picture: . ... To place the current object under all other click on left mouse button. To remove the object click on right one. ... You can switch off/on all objects of some type by clicking on the Control window buttons: "Galaxies", "FIRST radio objects" or "NVSS radio objects". ...

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. ...

... Meta Index / Home Page / The spectrum-selection window . ... Align Spectrum Allows the selected spectrum to be moved using the up/down/left/right arrow keys. ... Spectrum If marked then using the left . right/up/down keyboard keys, the spectrum regions will be moved left/right/up/down, respectively. Left background If marked then using the left or right keyboard keys, the left background-region will be moved left or right, respectively, with respect to the central region. ...

Operations in Point operations use the pointer to query sets about points, delete points in a set, and move points. In all cases where interaction is required, pressing the right mouse button with the pointer in the drawing area cancels the operation. ... Report on a point in a set . ... Press the left mouse button. ... Press Delete point with the left mouse button to activate. ... Move the pointer to the new location and press the left mouse button again to register the point's new location. ...

... The Matter of Galaxy Clusters . ... NASA Explanation: Situated over 2,000,000,000 ( two billion ) light-years from Earth, galaxies in cluster Abell 2390 (top) and MS2137.3-2353 (bottom) are seen in the right hand panels above, false-color images from the Hubble Space Telescope . ... While the Hubble images record the cluster's star-filled galaxies, the x-ray images show no galaxies at all ... only multi-million degree hot intracluster gas which glows in high energy x-rays. ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

. N OTE: . Only clusters with R<60 kpc were used to compute the spatial parameters and metallicity gradients for all subsystems except the corona. The numbers in parantheses give the number of clusters for which the corresponding parameter is known. The X O scale length of the old halo is strongly distorted by the observed asymmetry of the distribution of the corresponding clusters projected onto the XY plane ( Fig. 4А ) . discussion in the text | previous table .

The Permissions window shows which observing programs can control which instruments. ... If your program name does not appear, ask a telescope operator to add you and grant you the appropriate permissions. Telescope operators can also adjust permissions, add and delete programs and temporarily lock out non-operators from using particular instruments. ... Program Name Button : each program name button is a checkbutton: up (the normal state) means "added", down means "deleted". ...

MAKING THE PROFILES . First of all you are expected to load a FITS file ("FILE"-"LOAD"). ... By pressing the middle button you copy the profile from the first profile window to the second one. ... An example: first integral can correspond to the profile of active region and second integral can correspond to the profile of quiet chromospheric region. ... The second profile (which is subtracted from the first one) you extract after clicking on "SUBTRACT"-"MARK QUIET PROFILE" and marking the region. ...

... If You Have Neither OS/2 Dual Boot Nor OS/2 Boot Manager -------------------------------------------------------- If you want to remove OS/2 from your computer but want to save the data on your hard disk first, carry out the following procedure: To remove OS/2 and save the data on your computer: 1. ... Back up the data files you want to keep onto floppy disks by using the COPY command. ... Reinsert Setup Disk 1 in drive A (the startup drive). ... Restart your computer by pressing CTRL+ALT+DEL. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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 ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Galaxy Clusters . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... Catch a Star 2013 . Catch a Star 2011 . ... The star cluster, known as NGC 3293, would have been just a cloud of gas and dust itself about ten million years ago, but as stars began to form it became the bright group we see here. ...

... The most powerful and widely used methods to calculate the scattering matrix of a fractal cluster are based on the coupled dipoles methods (e.g. the Discrete Dipole Approximation, DDA) and the theory of light scattering by a cluster of spherical particles [2-4]. ... At present the procedure of calculation of the scattering matrix is well developed for both an oriented cluster of spherical particles and for chaotically oriented clusters of such particles [4]. ...

... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...

To... Do this.. Delete the character to Press the DELETE key. the left of the cursor. Delete the character under ^D the cursor. Delete from cursor to the M-D end of a word. Delete from cursor to the M-^H start of a word. Delete from cursor to the ^K end of a line. Delete an entire line. ^A^K Undelete (yank back) a ^Y word or line.

OptInt PmWiki : Pm Wiki / Edit Variables . ... When set to '1', turns on the graphical buttons in the "Edit Page" form. # turn on graphical edit buttons . ... When set to '1', enables the "Save draft" button and built-in handling of "draft" versions of pages, where: . ... The suffix to use for draft versions of pages (default "-Draft"). ... The pattern used to determine if a page should be deleted. ... Name of the page (or an array of names) to be used as the default text for any newly created pages. ...