свальная астростатистика

Jan 01, 2013 04:58

В конце года часто подводят итоги. Давайте оставим лытдыбры в стороне и посмотрим на некоторые аспекты статистики наблюдательной астрономии.

Очередное обновление статистики центра малых планет пришлось на конец декабря. Постоянно увеличивающиеся числа впечатляют - практически 97.8 миллионов, но не объектов, а зарегистрированных наблюдений, в ( Read more... )

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gvard_ru April 14 2013, 20:34:12 UTC
The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey. Table 1. Contents of DR9. Area Imaged: 31,637 deg^2 total, 14,555 deg2 Unique (removing all duplicates and overlaps). Cataloged Objects 1,231,051,050 total, 469,053,874 unique.
All Spectroscopy from SDSS-I/II/III: Total number of useful spectra 2,598,033. Среди них Galaxies 1,457,002, Quasars 228,468, Stars 668,054 ( ... )

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gvard_ru April 17 2013, 09:12:29 UTC
Data Release 9 Quasar (DR9Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the SDSS III. The catalog includes all BOSS objects that were targeted as quasar candidates during the survey, are spectrocopically confirmed as quasars via visual inspection, have luminosities Mi[z = 2] < -20.5 and either display at least 1 emission line with full width at half maximum (FWHM) larger than 500 km/s or, if not, have interesting/complex absorption features. It includes as well, known quasars (mostly from SDSS-I and II) that were reobserved by BOSS. This catalog contains 87 822 quasars (78 086 are new discoveries) detected over 3275 deg2 with robust identification and redshift measured by a combination of principal component eigenspectra newly derived from a training set of 8632 spectra from SDSS-DR7. The number of quasars with z > 2.15 (61 931) is ~2.8 times larger than the number of z > 2.15 quasars previously known. For each object the catalog presents five-band (ugriz) CCD-based photometry with typical accuracy of 0.03 mag ( ... )

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gvard_ru April 5 2014, 18:35:00 UTC
DR10Q: 166583 quasars detected over 6,373deg2 (+additional 2,376 quasars that have been identified among the galaxy targets of the SDSS-III/BOSS).

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gvard_ru April 17 2013, 10:16:07 UTC
The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-IIIThe principal scientific goal of SDSS-I (2000-2005) and much of SDSS-II (2005-2008) was to create a well-calibrated and contiguous imaging and spectroscopic survey of the northern Galactic cap at high Galactic latitudes, with the spectroscopy primarily focused on extragalactic targets ( ... )

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gvard_ru April 14 2013, 21:20:00 UTC
GLIMPSEI V2.0 Data Release. (v2.0 May 11, 2007)
North (l=10 to 65 deg) + South (l=-10 to -65 deg), b=+- 1: 31,184,509 in catalog, 49,258,859 in archive. GLIMPSEI is single epoch data.
GLIMPSEII V2.0 Data Release. (Version 2.1 November 18, 2009)
From all epochs: data taken in September 2005 (epoch1), April 2006 (epoch2) and reobservations of bad/missing frames. Also includes GLIMPSEI data at the boundaries of the GLIMPSEII survey and the Galactic Center data from the Guest Observer Program GALCEN-PI Susan Stolovy.
5 l 10, 350 l 355: -1 b 1
2 l 5, 355 l 358: -1.5 b 1.5
0 l 2, 358 l 360: -2 b 2.
l=11 to -11 deg: 19,067,533 cat, 24,377,005 arch.
GLIMPSE3D V1.0 Data Release. (v1.0 DR Version 1.4 October 27, 2011)
Southern Galactic Plane (l<-9), Northern Galactic Plane (l>9), Inner Galaxy (|l|<9). Up to |b| < 3deg, but up to |b| < 4.2 deg in the center of the Galaxy.
Galactic Legacy Infrared Mid-Plane Survey Extraordinaire. GLIMPSEI, GLIMPSEII and GLIMPSE3D Enhanced Data Products.Table 4. Photometric Accuracy of GLIMPSE3D Sources. Band, ( ... )

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gvard_ru April 17 2013, 08:47:24 UTC
UKIRT - 3.8 m (Largest - altazimuth VISTA (Visible and Infrared Survey Telescope for Astronomy), 4.1 m, f/3.26). Since December 13, 2010 UKIRT is operated remotely from Hilo in a minimalist operation mode (no observers present). In 2012, its shutdown in sept 2013 was announced.
UKIDSS is a set of five surveys.
Planned final UKIDSS 7-year sky coverage. The dashed line marks the Galactic plane, and the dotted line marks the ecliptic. Note that UKIRT lies at latitude +20 deg:

... )

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gvard_ru April 17 2013, 11:20:06 UTC
ROMAGAL: the Hi-GAL data reduction pipeline.
Hi-GAL Herschel Infrared Galactic Plane Survey - The largest Herschel open-time key project. Wavelength Coverage 70-500 μm, Sky coverage 2°x360°, |b| ≤ 1° (following the Galactic warp), PACS and SPIRE observe simultaneously, Scan speed 60”/sec.
Hi-GAL 1: |b| < 1, l -71 - 66 deg. Hi-GAL 360 & 2pi: the whole plane.

Band Nominal beam (“) Pixel size (“) Tot pixel
PACS 70 5.2 3.2 ~1700x1700 (~3000x3000 total?)
PACS 160 12.0 4.5 ~1200x1200
SPIRE 250 18.0 6.0 ~1000x1000
SPIRE 350 24.0 8.0 ~700x700
SPIRE 500 34.5 11.5 ~500x500
Preliminary catalogue in Hi-GAL “1”: ~ 400,000 sources.

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gvard_ru April 17 2013, 14:12:04 UTC
Akari (Astro-F) D=68.5 cm effective aperture, F=4.2 m. (IRAS: D=57 cm, F=5.5 m, f/9.6).
Two instruments: the Far-Infrared Surveyor (FIS; Kawada et al. 2007) for the far-infrared observations and the Infrared Camera (IRC; Onaka et al. 2007) for the near and mid-infrared wavelengths, 9-200um.
AKARI was launched on 2006 February 22. AKARI All-Sky Survey started in 2006 May and was completed in 2007 August.
The post-Helium phase (Phase 3) routine observations (only with IRC) have started on June 1st, 2008.
The operation of satellite was terminated officially on 24 November 2011.
The Akari All-Sky Survey Point Source Catalogues was released on 30 March 2010. This release consists of two infrared catalogs: the FIS Bright Source Catalogue (BSC; Yamamura et al. 2010) with 427,071 objects observed in the four far-infrared wavelengths, and the IRC Point Source Catalogue (PSC; Ishihara et al. 2010) including 870,973 objects in the two mid-infrared wavelengths. The catalog set covers more than 98% of the sky ( ... )

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gvard_ru April 17 2013, 17:15:48 UTC
GALEX (50 cm. F=3 m, Low Earth orbit - height 697 km) launched April 28th, 2003.
GALEX is providing wide-field (1.2 deg diameter) imaging in two Ultraviolet (UV) bands simoultaneously: FUV (eff=1539A,  =1344-1786A) and NUV (eff=2316A,  =1771-2831A), with a resolution of 4.2/5.3′′ (FUV/NUV) (Morrissey et al. 2007).
The Galaxy Evolution Explorer (GALEX) Source Catalogs, Jan 2012.
Covering a total of 26,300 deg2 of sky, the All-Sky Survey Source Catalog (GASC) consists of all GALEX observations with exposure times below 800 sec and reaches a depth of NUV 21 (AB mag). The Medium Imaging Survey Source Catalog (GMSC) covers a smaller region of 5000 deg2 with exposure times between 800 and 10,000 sec and reaches a depth of NUV 23 mag. There are a total of 40 million unique sources in the GASC and 22 million in the GMSC.
GALEX Release 6 and 7: Medium Imaging Survey (MIS), NGS, CAI, DIS, GII, All-Sky Imaging Survey (AIS) imaging survey data and WSS, CAS, MSS, GIS, DSS, ETS Spectra survey data.
GR5 AIS and MIS coverage:

... )

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gvard_ru April 19 2013, 00:08:58 UTC
Swift BAT 70-Month Hard X-ray Survey in the 14-195 keV band down to a significance level of 4.8, associated with 1210 counterparts.
SNR - 6, Seyfert I (Sy 1.0-1.5) - 292, Seyfert II (Sy 1.7-2.0) - 261, Other AGN 23, Blazar/Bl Lac 49, QSO 86.
Swift Gamma-ray burst observatory has been continually observing the hard X-ray (14-195 keV) sky ever since with the BAT.
This paper extends this work to include all sources detected in the first 70 months of data between 12.2004 and 09.2010.
Hard X-ray source cats have also been published based on observations from the INTEGRAL and on independent analyses of Swift-BAT data by the Palermo group. The INTEGRAL-based surveys benefit from the somewhat better angular resolution of the IBIS instrument (12 arcmin versus 19.5 arcmin FWHM for BAT); however, the much narrower field of view of IBIS coupled with their observing strategy limits the uniformity of the IBIS sky coverage. This leads to lower sensitivity than BAT surveys over much of the sky away from the galactic plane ( ... )

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gvard_ru May 19 2013, 19:59:55 UTC
Catalogues Ordered by their VizieR Usage (since Apr 2010):
00.69% (B/vsx) AAVSO International Variable Star Index VSX (Watson+, 2006-2013) (статистика в истории!)
00.65% (B/gcvs) General Catalogue of Variable Stars (Samus+ 2007-2013)
00.42% (I/280B) All-sky Compiled Catalogue of 2.5 million stars (Kharchenko+ 2009), Кинематика и физика небесных тел, vol. 17, no. 5, p. 409-423.
00.26% (III/135A) Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)
00.26% (J/A+A/469/799) Torun catalog of post-AGB and related objects (Szczerba+, 2007)
00.25% (B/wds) The Washington Visual Double Star Catalog (Mason+ 2001-2013) (125672 двойных 12 мая 2013 г., статистика в истории!)
00.24% (B/mk) Catalogue of Stellar Spectral Classifications (Skiff, 2009-2013) (636441 записи 6 мая 2013 г., статистика в истории)
00.16% (J/ApJS/204/5) SDSS DR7 white dwarf catalog (Kleinman+, 2013)
00.13% (B/eso) ESO Science Archive Catalog (ESO, 1991-2013)
00.11% (B/sb9) SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2013 ( ... )

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gvard_ru October 2 2013, 14:06:05 UTC
Распределение остатков сверхновых в Галактике (более 274 штук).
A catalogue of 294 Galactic supernova remnants. A revised catalogue of 294 Galactic supernova remnants (SNRs) is presented, along with some simple statistics. This catalogue has twenty more entries than did the previous version (from 2009), as 21 new remnants have been added, and one object has been removed as it has been identified as an HII region.

Каталог магнетаров, составленный учеными из университета МакГилла в Канаде - 28 штук (08.2014).

RAdial Velocity Experiment (RAVE): четвертый релиз данных (arXiv:1309.4284). Stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances and distances determined for 425 561 stars.

(обзоры 305, 317).

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gvard_ru April 4 2014, 16:26:33 UTC
The Asiago Supernova Catalogue (Dynamic Version) 6354 SNe.

WDS 31-Mar-2014: 128426 binaries.
Catalogue of the Components of Double and Multiple Stars (CCDM): 105838 records (2002).
VSX 2014-03-31: 285660 stars.

WDS updates:

... )

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