We report far-infrared and submillimeter observations of supernova 1987A, the star whose explosion was observed on 23 February 1987 in the Large Magellanic Cloud, a galaxy located 160,000 light years away. ... The intensity and spectral energy distribution of the emission suggest a dust mass of about 0.4 to 0.7 times the mass of the Sun. ... Our observations imply that supernovae can produce the large dust masses detected in young galaxies at very high redshifts. ... ADS Citation Query . ...

Sternberg Astronomical Institute, Moscow University, . Moscow, Russia . Supernovae make us brighter .. Search russian astronomical resources . Mirror of International Supernovae Network ( Original site ) . Catalogue of Supernovae Stars . HTTP access to SAI Catalogue of Supernovae Stars . SAI SN Light Curves Online . ... Sternberg Astronomical Institute ( in Russian ) . ... Astronet - Russian Astronomical Network . ... Russian Foundation for Basic Research . ...

... Right: cold gas traced by [CII] emission (red) accreting onto a primeval galaxy (green) at z=7.1 ( Maiolino et al. 2015 ) (image credit: ALMA Press Release ) . ... 2010 , Cicone, Maiolino et al. ... 2012 , Cicone, Maiolino et al. ... Right: observed distribution of the average stellar metallicities of passive and star forming galaxies in the local universe, supporting starvation/strangulation as primary quenching mechanism in low/intermediate mass galaxies ( Peng, Maiolino, Cochrane 2015 ). ...

... ESO Fellow . ... Before that I was a Postdoctoral Research Fellow at the University of Toronto with Marten van Kerkwijk . I finished my thesis, titled "Type Ia Supernovae: Progenitors and explosions" , in 2011 with Brian Schmidt at the Australian National University. My research focuses stars before, during and after explosion (exploding stars are also known as supernovae). ... The lack of hydrogen in Type I supernovae is a bit of a mystery. ...

... Staff . ... Cosmic dust has been observed both in emission and extinction everywhere in our Galaxy as well as in many other galaxies. ... Dust grains are classically thought to form in the winds of Asymptotic Giant Branch (AGB) stars. However, nowadays there is increasing observational evidence for notable dust formation in Supernovae (SNe). ... Hence the observed dust mass of 0.7вИТ0.9M вКЩ in this source can be safely considered as indicative of the mass of freshly formed dust in SN ejecta. ...

... Contacts . 2008: . Detection of two new LBV stars. In two exterior galaxies new luminous blue variable stars (LBV) were observed. ... Fast deceleration of rotation of a magnetic star with a strong field HD 37776. 31 years of observations of the magnetic star HD 37776 resulted in detecting deceleration of its axial rotation for 17.7 0.7s (dP/P = 4.0x10 -6 per year). ... It is the first case of magnetic deceleration detection for a chemically peculiar star on the main sequence. ... Archive . ...

... Star Atlas . ... solar system . ... stars . ... Observe the Solar System . ... What factors determine if a massive star (say, 100 solar masses) forms instead of a Sun-like star? ... Stars of all masses form from dense clumps within exceptionally cold molecular clouds. ... Massive stars tend to form at the centers of high-mass reservoirs of gas. Get instant access to subscriber content on Astronomy.com! ... A gamma-ray burst hints that LIGO's double black holes started as one massive star . ...

... In collaboration with Drs Van Genderen (Leiden, Holland) and Sterken (Brussels, Belgium) papers XV and XVI in the series `Light Variations of Massive Stars' were published. These dealt with the brightness variations of several massive stars in the two nearest neighbour galaxies, namely six stars (R85, R99, R103, R110, R123 and R128) in the Large Magellanic Cloud (LMC) and two (R42 and R45) in the Small Magellanic Cloud (SMC). ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Eta Carinae is one of the most massive stars in our Galaxy. ... Additional information and images on Eta Carinae at radio wavelengths . ...

... Dr. Stella Kafka . Thursday, Dec 10, 2015 at 8:00 PM . Type I Supernovae are massive stellar explosions that result from an interaction between a white dwarf and a companion whose mass it accrues in a close binary system. When the white dwarf’s mass reaches 1.4 that of the sun, the supernova occurs. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... SN Refsdal: The First Predicted Supernova Image . ... Most bright spots in the featured image are galaxies in this cluster. ... Gravity caused the cluster to act as a massive gravitational lens , splitting the image of Supernova Refsdal into multiple bright images . ... Four more bright images peaked in April in the lowest red circle, spread around a massive galaxy in the cluster as the first Einstein Cross supernova. ... A Supernova through Galaxy Dust . ... Giant Cluster Bends Breaks Images . ...

... We can investigate projection of this distribution onto the celestial sphere in two ways: in terms of lines of constant SN frequencies per one square degree for all galaxies from the sample (Figure 36 ), and in terms of constant GW amplitudes at a given SN frequency per square degree (Figure 44 ). ... Figure 45: The sky distribution of the total supernova frequency from nearby galaxies in terms of lines of equal frequencies per square degree. ...

... More recently, I have been concerned with observing masers located in the circumstellar shells generated by red giant stars in their mass-loss phase, and in what we can therefore learn about the late stages of stellar evolution. 100 mJy are now undetectable after ~12 years, aka the DEATH of an OH/IR star or its cyclical evolution back to a Mira variable. ... I find that this momentum flux is sufficient to support the largest observed rates of AGB mass-loss. last updated: 14 January 2015 . ...

... This proposal seeks to investigate the properties of the GRB-SN and therefore enhance our understanding of the GRB central engine, GRB progenitors, and the associated physical properties. ... Their results favour low metallicity, sub-luminous galaxies with L A significant part of Rapoport's PhD thesis will be dedicated to better understand the Supernovae that become GRBs, and to investigate the connections between GRB central engines and the progenitor stars that explode. ...

HI envelopes around HII regions . ... We have investigated 32 HII regions and around 17 of them we have found the clumped HI envelopes with radial motions. The example of the envelope around HII regions M16 is shown on figure 1. ... The thickness of envelopes is rather great - 0.44 radius, mass are about 6E+4 mass of the Sun, kinetic energies - 10E+50 ergs. ... The model of formation of HI envelope was advanced as outcome of an operation of a summarized stellar wind of stars, exciting HII region. ...

... Future seminars . ... Magnetic explosions and physics of Gamma-Ray Bursts " . ... I will review the dynamical role of magnetic fields in extracting the energy of a relativistic rotating progenitor (like black hole ili super-massive neutron star), in collimating the outflow and in producing the observed high energy emission. In particular, I will concentrate on the dynamics of relativistic explosions in the wind zone assuming that most energy is released by the GRB progenitor in a form . ...

We report here on those proposed UIT targets that, in fact, were successfully acquired. Where possible we provide an optical CCD image of the target or the field. ... A1 centered at 2500 angstroms with a width of 1200 angstroms . ... M33 is a low mass spiral galaxy in the Local Group. ... M33 is slightly too large to fit in one UIT field of view. This particular exposure of 690 seconds through the B5 filter imaged the sourthern half of M33. More exposures are planned for later. ...

Next: Observations and reduction Up: The discovery of SN1998bv Previous: The discovery of SN1998bv . ... Since the life cycle of massive stars is very short (<30Myr), one can expect to observe more or less frequent SNe in galaxies where current intensive star formation takes place. ... 1998). ... The supernova SN 1998bv was discovered on April 6, 1998 in the galaxy HS 1035+4758 selected as an ELG candidate in the HSS. ... Figure 1: DSS image of the galaxy HS 1035+4758. ...

... DLTS . ... Deep Level Transient Spectroscopy ( DLTS ) is a unique and powerful tool for the study of electrically active defects (known as traps) in semiconductors. DLTS can be used in one of two modes of operation; with Schottky diodes or with p-n junctions. ... The capacitance transient is measured as a function of temperature (usually in the range from liquid nitrogen temperature to room temperature 300K or above). ...

... Since the reddening found for the stars in Table 13 was small, no reddening correction was attempted. ... These diamonds indicate the positions of very low mass, 3 Myr old, objects from the work of Burrows et al. ... This optical V versus R - I scheme is a very powerful method of detecting very low mass (VLM) objects. ... Because of this, young brown dwarfs are intrinsically no more difficult to observe in the optical than low mass stars at the age of Orionis. ...