As part of a large Spitzer MIPS Guaranteed Time Observation program, we have searched for infrared excesses due to debris disks toward 26 FGK field stars known from radial velocity (RV) studies to have one or more planets. While none of these stars show excesses at 24 ЮМm, we have detected 70 ЮМm excesses around six stars at the 3 Я? confidence level. The excesses are produced by cool material ( . ...

... Astrophysics Group . ... COAST . COAST Astronomical Results . ... Surface Imaging of Betelgeuse . ... This page highlights some astronomical results obtained with COAST over the years. These are listed in chronological order (most recent first). ... Measurements of cyclic variations in the angular diameter of Chi Cygni . ... The first infrared image from an aperture synthesis array . ... The images of Betelgeuse below were reconstructed from COAST data taken in early 2004. ...

Next: Chemical abundances Up: HS 0822+3542 - a Previous: H I 21 cm . The main parameters of HS 0822+3542, along with those of the two earlier known local candidate young galaxies, are presented in Table 1 . The distances to all three galaxies for the sake of homogeneity are derived from the radial velocities. ... However, such distance estimates for two galaxies, HS 0822+3542 and I Zw 18 with small radial velocities are rather uncertain. ... The same relates to HS 0822+3542. ...

We investigate the relative importance of starbursts and active galactic nuclei (AGN) in nuclear activities of ultraluminous infrared galaxies (ULIRGs) based on chemodynamical simulations combined with spectrophotometric synthesis codes. We numerically investigate both the gas accretion rates (ARs; m acc ) on to supermassive black holes (SMBHs) and the star formation rates (SFRs; m sf ) in ULIRGs formed by gas-rich galaxy mergers and thereby discuss what powers ULIRGs. ...

. English . Russian KOI8 . Current server sed.sao.ru . Dissertation of Doctor of Sciences degree ( close to German Habilitation ) . A time to cast away stones, . and a time to gather stones together . Ecclesiastes, Ch. 3 ; 5 . Full gzipped PostScript version (in Russian) is here (2005), autoreferat (short thesis in Russian) is here . Main results of dissertation work . Continue...

... October 6, 15:00 15:40 . ... PDF [2.3б MB] October 6, 15:40 16:30 . Warren Skidmore (TMT), Reed Riddle (TMT), Angel Otarola (TMT), Sebastian Els (TMT), Tony Travouillon (TMT), Matthias Schoeck (TMT), R. Dahl (ISIS), D. Naylor (ISIS), R. Querel (ISIS) . The results of the characterization of precipitable water vapor (PWV) in the atmospheric column carried out in the context of identifying potential sites for the deployment of the Thirty Meter Telescope (TMT) are presented. ...

... In spite of the lack of rich clusters around us and the presence of large volumes completely free from galaxies (voids), the mean luminosity densities and the mean density of hydrogen mass in the Local Universe is one and a half - twice as high as their mean global values. However, the mean local density of the baryon mass is only 2% of the critical density of the Universe, which is twice as less as the baryon density from the nucleosynthesis data (local paradox of the baryon mass). ...

Properties of the interstellar gas clouds . ... The angular resolution of this Survey was 2.4' x 130', velocity resolution was 6.3 km/s, r.m.s. fluctuations of antenna temperature (T a ) was 0.25 K. All clouds with kinematical distances r a Some selection effects were discovered and our statistic results were corrected for them. Figure 1. ... In the very high mass range the number of neutral gas clouds may be decreased because of gravitational instability or/and molecularization. ...

... As the SN activity in the first generation stellar population must be small at present, the net SN rate in the vicinity of the Sun is approximately proportional to the local density of stars of second generation (or to the star formation rate, which is the same), especially for SN II and SN Ib. If a -like star formation of the first generation stars took place, a hump on the observed - showing the relative fraction of the first generation stars should be observed. ...

Next: HIMF Up: Minutes of the 1st Previous: HIPASS . ... HIDEEP is a deep, blind survey with Parkes over a small patch of sky. ... 9000 sec per beam . ... HIDEEP optical follow up: . ... HIDEEP galaxy properties: . ... HI column densities: . ... To figure out the actual HIDEEP sensitivity, you have to decide how to derive the limits on the column density when the beam is large (unresolved sources). ... In terms of your column density, you are assuming filled beam and then adopting an optical size. ...

... Compilation of TOPBASE data (Pavlenko Ya.V. Zhukovska, S. 2002, KFNT, accepted). ... Grid of model atmospheres of Sakurai's object (2002, A , 390, 621). Grid of model atmospheres of carbon giants, 12C/13C=10. Harris, G., Pavlenko, Ya, Jones, H.R.J, accepted by MNRAS, see astro-ph 0306141) . ... R CrB's 1D model atmospheres of different log N(Fe) (Pavlenko Ya.V. 1999. ... 1993, ApJ, 404, 333), but different log N(C) and log N(O), see Pavlenko (2007) submitted to Astron. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Release of Photometric Catalogue Data Resulting from the VISTA Magellanic Survey . ... The catalogues were extracted from the reduced images which have been released under VMC Data Release 2 in June 2013. The new catalogue data are accessible from the ESO catalogue facility query interface , each accompanied by a comprehensive description; see for example, the description of the YJKs master catalogue. ...

. September 9 - 14, 1996. Close to the apogee of the Auroral Probe orbit in the morning sector of magnetosphere at L > 8 the energy fluxes of ions with some maximums were regularly recorded. These maximums are probably connected with the registration of multicomponent ion flow containing H + , He + , N + +O + , N 2 + +O 2 + +NO + . The total flux of ions with the energy E < 25 eV is 4ћ10 7 - 5ћ10 8 cm -2 s -1 .

... The perceptron structure, on the basis of which the database is built, is defined by a number of the input and output parameters and a required accuracy. ... The output perceptron data are the expansion coefficients of the scattering matrix elements in series of the generalized spherical functions. ... As the cluster structure depends on the generation conditions the expansion coefficients were averaged over 5--7 realizations of the clusters (for N . ... is the coefficient number. ...

... Infrared observations of RCBs show that, even at maximum light, there are copious amounts of dust surrounding the star. ... Therefore the obscuring dust can only cover a fraction of the stellar surface. The picture that emerges (Fig. 2 ) is that at a particular phase in the pulsation cycle, conditions in the photosphere can compel the carbon-rich gas to be expelled from a part of the stellar surface to cool, condense and form dust grains. ...

... Астрофотография (Модераторы: LifeIsGood , MaxMan ) > . Solar ecl?pse ?n Antaliya. Results . ... Астрофотография . ... Благодарностей: 183 . 31 Март 2006, 15:46:41 ? ... Below ?s first results from Astropolis expedit?on ?n Antaliya. ... Последнее редактирование: 01 Апрель 2006, 09:18:57 от Chepurny ? Записан . ... Ответ #1 : 31 Март 2006, 15:47:58 ? ... Благодарностей: 105 . ... Благодарностей: 148 . ... Благодарностей: 18 . ... Благодарностей: 327 . ... Благодарностей: 107 . ...

K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

Next: *search_grid* - Grid of Up: Spectral Analysis Previous: Inspection of results . The results can be displayed graphically: xs> counts_plot observed spectrum [root_obs.tab] rp90 # input is rp90_prd.tab . A plot will appear on the screen, showing data points with error bars, and the predicted model as a histogram when one is present. ... d and s for plots of `observed-predicted' and `(observed-predicted)/error' respectively, and . ... These options are specific to counts_plot. ...

Альтернативный форум . Scientific.ru Все форумы . ... Time (@) - 13.04.2007 09:15 . Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results . x203a; x203a; x203a; в ответ на: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич . ... Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич, 13.04.2007 13:37 . ...

First results of X/S and X/Ka-band catalog combinations with full covariance information Andreas Iddink , Christopher Jacobs, Thomas Artz, Axel Nothnagel 22.09.2014 First results of S/X and X/Ka-band catalog combinations with full covariance information Andreas Iddink ­ 22.09.2014 Motivation Features of the ICRF2 ICRF2 (Defining- Sources ) 3414 ... Step: Import of the X/Ka catalog with full covariance information (Data provided by Christopher Jacobs et al. ...