... Posts tagged ?principle component analysis? ... From SINGS (Spitzer Infrared Nearby Galaxies Survey): Isn?t it a beautiful Hubble tuning fork? ... Tags: Classification , clustering , factor analysis , Hubble , multivariate analysis , principle component analysis , SING , Spitzer , tuning fork . ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

... DIGITAL EDITIONS . ... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Bright galaxies . ... Get instant access to subscriber content on Astronomy...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

AGN dust model of 3CR sources Frank Heymann (PhD), Martin Haas, Endrik Krgel, Christian Leipski MIR imaging spectroscopy ISM dust model PAH SED of a clumpy AGN torus CenA (ESO) Crete 2010 vectorized Monte Carlo model Ralf Siebenmorgen 1) Ground based MIR imaging Nuclear activity in nearby galaxies Surface brightness AGN viz. starbursts Ralf Siebenmorgen 10m telescopes ... Ralf Siebenmorgen Crete 2010 PAH in a mono-energetic heating bath if | ... Crete 2010 ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Brightest Northern Hemisphere Galaxy . Forum List | ... Post Message | ... In which constellation would I find the brightest galaxy in the northern hemisphere? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

This page is devoted to information on Supernova 1998T in NGC 3690 . Information on the original web pages for many of these images can be found on the Supernova links web page. ... According to http://www.cv.nrao.edu/~jhibbard/a299/a299.html and http://www.ifa.hawaii.edu/postdocs/vacca/images/arp299buv.html it follows that Arp 299 (aka Mrk 171) is made up of IC 694 (UGC 646471) on the east and NGC 3690 (H-247-1) (UGC 646472) on the west. ... Other images of 1998T . Ayabe image . ...

... SKY IN THE HIGH-ENERGY GAMMA-RAYS ACCORDING TO THE DATA OF SAS-2 (1972-1973), COS B (1975-1982), GAMMA 1 (1990-1992) AND EGRET (1991-2000) . ... View of the sky in the gamma-rays of energy above 100 Mev according to the EGRET data. The small bright spots correspond to compact sources. ... COMPACT SOURCES . Compact high-energy gamma-ray sources according to the 3-d EGRET catalog. ... Unidentified sources . ... previous page . next page . main page . CYGAM (PDF, 450 Kb) . ...

Polycyclic aromatic hydrocarbons in HII regions: correlation with metallicity . ... We have perfomed the aperture photometry of HII regions using infrared images from telescopes Spitzer and Herschel at passbands 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 m. Emission of PAHs are observed at passbands 3.6 - 8.0 m, 24 m is emission likely of hot small particles and finally large particles are responsible for emission at 70 and 160 m. We determine abundances of PAHs using model of Draine Li (2007) . ...

... A tussle in the distant Universe. This Hubble Space Telescope image shows evidence for a merger between a quasar and a companion galaxy. The quasar is the bright object just beneath the image center, and the wisps of material around it are remains of a galaxy disrupted by the interaction between it and the quasar. ... Galactic Nuclei: Old Quasars? Quasars as Probes of the Distant Universe . ... Quasars. ... The name quasar is made up with parts of the words "quasi-stellar radio." ...

ATMoB "Galaxy Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Galaxy Observing Awards program. ... Examples of elliptical galaxies: M49, M59, M60, M87, NGC 4125. Limiting Magnitude Assessment: Spirals: A spiral galaxy consists of a flattened disk, with stars forming a (usually two-armed) spiral structure, and a central concentration of stars known as the bulge. ...

... arXiv.org . astro-ph . ... We fit the near-infrared to radio spectral energy distributions of 30 luminous and ultra-luminous infrared galaxies with pure starburst models or models that include both starburst and AGN components to determine important physical parameters for this population of objects. In particular we constrain the optical depth towards the luminosity source, the star formation rate, the star formation efficiency and the AGN fraction. ...

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

... Keck spectropolarimetry, giving spectral coverage from Ly- to beyond CIII], and HST imaging of a sample of powerful radio galaxies with has been obtained. ... This is a short progress report on a rather extensive programme we are carrying out to study the structure and composition of high redshift radio galaxies (HzRG) -- and, by implication, the host galaxies of radio quasars -- using observations in the optical, IR and mm bands. ... An example of the NICMOS and WFPC 2 imaging is shown in Figure 2 ...

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 08.11.2011 . ... All news ...

... Figure 1: Data from selected high latitude pointings overlaid in detector co-ordinates. 132ksec total low proton flare conditions, and bright point sources excised . Figure 2: Same data set from selected high latitude pointings but in 0.2-2keV only. ... Figure 3: Same data set from selected high latitude pointings but in 2-10keV only. ... Figure: EPIC MOS data set from selected high latitude pointings plotted as spectra (PATTERNS 12&&#XMMEA_EM), and normalised for approx 1 arcmin square. ...

... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

The Virgin. ... This is a double system with a long orbit and a period of 171 year. The maximum distance between them was 6" in 1925 and it will be 0,5" in 2011. The light of the each component is 3,5 of star value. Near the Virgin star r there is an interesting galaxy M 87 (or the radiogalaxy of the Virgin A) aproximetly the 9th star value. ... The most bright quasar (3C 273) lays in the Virgin, but it is able to see this quasar only in a big telescope. ...

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