Spectacular Evidence of the Greatness of Almighty Allah
... filament wall of galaxies which measure over 500 million light-years long, 300 million light-years wide and 15 million light-years thick. It was discovered in 1989. It is not known how much farther the wall extends due to the plane of the Milky Way galaxy in which Earth is located. The gas and dust ...
... filament wall of galaxies which measure over 500 million light-years long, 300 million light-years wide and 15 million light-years thick. It was discovered in 1989. It is not known how much farther the wall extends due to the plane of the Milky Way galaxy in which Earth is located. The gas and dust ...
OBSERVATIONS OF PHYSICAL PROCESSES IN
... cluster galaxies (BCGs) of those clusters. It has been known for a while that the state of the hot intracluster medium (ICM) gas in the core of a galaxy cluster, quantified as the central entropy of the gas, can be found in two particular states. Galaxy clusters with central entropies greater than 3 ...
... cluster galaxies (BCGs) of those clusters. It has been known for a while that the state of the hot intracluster medium (ICM) gas in the core of a galaxy cluster, quantified as the central entropy of the gas, can be found in two particular states. Galaxy clusters with central entropies greater than 3 ...
PLUTO - Department of Earth and Planetary Sciences, Northwestern
... The name Pluto (Plouton) is adapted form Greek mythology. There is a common conflation in the Grecko-mythical characters on Pluto. The conflation is a result of translating two identical names Plouton and Ploutos into English. Ploutos (Fig. 1) was a god of wealth, because mineral wealth was found un ...
... The name Pluto (Plouton) is adapted form Greek mythology. There is a common conflation in the Grecko-mythical characters on Pluto. The conflation is a result of translating two identical names Plouton and Ploutos into English. Ploutos (Fig. 1) was a god of wealth, because mineral wealth was found un ...
The environment of high-redshift AGN OLIMPIA JUDIT FOGASY
... radio galaxies suggest that these AGN live in overdense environment surrounded by star-forming Lyα-emitters and submillimeter galaxies. At smaller scales several high-z quasars and radio galaxies have gas-rich, star-forming companion galaxies, such as the subject of the appended paper, the system of ...
... radio galaxies suggest that these AGN live in overdense environment surrounded by star-forming Lyα-emitters and submillimeter galaxies. At smaller scales several high-z quasars and radio galaxies have gas-rich, star-forming companion galaxies, such as the subject of the appended paper, the system of ...
Jul y 10-12,
... IGR J17091-3624 is a black hole system which has very recently attracted the interest in the scientific community as it is the first system to show some of the bizarre, high-amplitude, highly-structured X-ray variability only seen before in the extremely energetic black hole system GRS 1915+105. In ...
... IGR J17091-3624 is a black hole system which has very recently attracted the interest in the scientific community as it is the first system to show some of the bizarre, high-amplitude, highly-structured X-ray variability only seen before in the extremely energetic black hole system GRS 1915+105. In ...
The impact of mass-loss on the evolution and pre
... envelopes of these stars and thus from the difficulty to obtain reliable spectroscopic diagnostics. Moreover, it is likely that these stars do not lose mass uniformly as a function of time but undergo strong and short outbursts. One spectacular example is VY CMa. It is a luminous M supergiant with a ...
... envelopes of these stars and thus from the difficulty to obtain reliable spectroscopic diagnostics. Moreover, it is likely that these stars do not lose mass uniformly as a function of time but undergo strong and short outbursts. One spectacular example is VY CMa. It is a luminous M supergiant with a ...
as a PDF - Living Reviews in Solar Physics
... particles travel through interplanetary space to eventually interact with planetary atmospheres; the solar wind is guided by open magnetic fields; this magnetized-wind complex forms a large bubble, an “astrosphere” in interstellar space containing the entire solar system and protecting it from a hig ...
... particles travel through interplanetary space to eventually interact with planetary atmospheres; the solar wind is guided by open magnetic fields; this magnetized-wind complex forms a large bubble, an “astrosphere” in interstellar space containing the entire solar system and protecting it from a hig ...
Giant star seismology
... (1973) on double-mode Cepheids. He showed that stellar masses inferred from the periods and period ratios were inconsistent with the location of the stars in the HR diagram as predicted by stellar evolution models. This problem motivated a revision of stellar opacity tables which led to very good ag ...
... (1973) on double-mode Cepheids. He showed that stellar masses inferred from the periods and period ratios were inconsistent with the location of the stars in the HR diagram as predicted by stellar evolution models. This problem motivated a revision of stellar opacity tables which led to very good ag ...
The properties of a spectroscopically selected sample of cataclysmic variables Amornrat Aungwerojwit
... I would like to thank Dr. Boris G¨ansicke for being a superb supervisor in guiding me during my PhD. Without his useful suggestions, constructive comments, kindness, and patience, the work presented in this thesis could not have been satisfactory. I am grateful for his enthusiasm, which has inspired ...
... I would like to thank Dr. Boris G¨ansicke for being a superb supervisor in guiding me during my PhD. Without his useful suggestions, constructive comments, kindness, and patience, the work presented in this thesis could not have been satisfactory. I am grateful for his enthusiasm, which has inspired ...
SOHO`s Frequently Asked Questions
... The energy released in this way makes its way outwards towards the surface in the form of radiation (light) and gas motions (just as when you boil a pot of water on your stove, the hot water starts to bubble upwards). By the time the energy gets out to the surface of the Sun, it is spread out over a ...
... The energy released in this way makes its way outwards towards the surface in the form of radiation (light) and gas motions (just as when you boil a pot of water on your stove, the hot water starts to bubble upwards). By the time the energy gets out to the surface of the Sun, it is spread out over a ...
An Atlas of Stellar Spectra
... The Atlas of Stellar Spectra and the accompanying outline have been prepared from the viewpoint of the practical stellar astronomer. Problems connected with the astrophysical interpretation of the spectral sequence are not touched on; as a consequence, emphasis is placed on ``ordinary'' stars. These ...
... The Atlas of Stellar Spectra and the accompanying outline have been prepared from the viewpoint of the practical stellar astronomer. Problems connected with the astrophysical interpretation of the spectral sequence are not touched on; as a consequence, emphasis is placed on ``ordinary'' stars. These ...
PDF hosted at the Radboud Repository of the Radboud University
... It should be noted that despite the general homogeneity of type Ia supernova explosions, there is growing observational evidence of a number of distinctive sub-groups (e.g. several subclasses of sub- and super-luminous events) which exhibit small, yet noticeable and systematic spectroscopic and phot ...
... It should be noted that despite the general homogeneity of type Ia supernova explosions, there is growing observational evidence of a number of distinctive sub-groups (e.g. several subclasses of sub- and super-luminous events) which exhibit small, yet noticeable and systematic spectroscopic and phot ...
... Key Words galaxy dynamics, galaxy structure, galaxy evolution ■ Abstract The Universe is in transition. At early times, galactic evolution was dominated by hierarchical clustering and merging, processes that are violent and rapid. In the far future, evolution will mostly be secular—the slow rearrang ...
The physics of line-driven winds of hot massive stars
... A starry night in the Chilean desert is one of the most beautiful views a person can see in her or his life. One is overwhelmed by the immensity of our galaxy (see Figure 1.1), and is intrigued by the presence of two of its satellites, the Large and Small Magellanic Cloud. Galaxies are comprised of ...
... A starry night in the Chilean desert is one of the most beautiful views a person can see in her or his life. One is overwhelmed by the immensity of our galaxy (see Figure 1.1), and is intrigued by the presence of two of its satellites, the Large and Small Magellanic Cloud. Galaxies are comprised of ...
The Evolution of Star Formation Activity in . Cory R. Wagner
... In this thesis, we explore 7.5 billion years of evolution in cluster galaxy star formation activity using a sample of 11 high-redshift (1 < z < 1.5) clusters from the IRAC Shallow Cluster Survey, and 25 low-redshift (0.15 < z < 1) clusters from The Cluster Lensing And Supernova survey with Hubble. W ...
... In this thesis, we explore 7.5 billion years of evolution in cluster galaxy star formation activity using a sample of 11 high-redshift (1 < z < 1.5) clusters from the IRAC Shallow Cluster Survey, and 25 low-redshift (0.15 < z < 1) clusters from The Cluster Lensing And Supernova survey with Hubble. W ...
Understanding Variable Stars - Central Florida Astronomical Society
... 2.1 A visual binary star system Krüger 60, in Cepheus 16 2.2 The globular cluster M14, showing a Population II Cepheid variable star at maximum (left) and minimum (right) brightness 18 2.3 Cepheid variable stars discovered by E.P. Hubble (the numbered stars) in the nearby spiral galaxy M33 20 2.4 T ...
... 2.1 A visual binary star system Krüger 60, in Cepheus 16 2.2 The globular cluster M14, showing a Population II Cepheid variable star at maximum (left) and minimum (right) brightness 18 2.3 Cepheid variable stars discovered by E.P. Hubble (the numbered stars) in the nearby spiral galaxy M33 20 2.4 T ...
as PDF - Minnesota Academy of Science
... The drawing below on the right (3) represents the comet as seen five days earlier, while its head W88 passing the bright star, Arcturus, which we, have chosen al! the reference star for all these figures. On the left hand is another drawing of the same· comet ( 4) by Johnson, which seems to be a fav ...
... The drawing below on the right (3) represents the comet as seen five days earlier, while its head W88 passing the bright star, Arcturus, which we, have chosen al! the reference star for all these figures. On the left hand is another drawing of the same· comet ( 4) by Johnson, which seems to be a fav ...
Astronomy Astrophysics Gaia-ESO Survey: The analysis of high-resolution The
... E(B − V). The targets selected before April 2012 had a brightest cut on J = 11 instead of 12. When there were not enough targets, the red edge was extended. When there were too many potential targets an algorithm selected roughly the same number of stars per magnitude bin with the rest being marked ...
... E(B − V). The targets selected before April 2012 had a brightest cut on J = 11 instead of 12. When there were not enough targets, the red edge was extended. When there were too many potential targets an algorithm selected roughly the same number of stars per magnitude bin with the rest being marked ...
A Universal Stellar Initial Mass Function? A Critical Look Further
... The second implicit assumption is required due to finite stellar lifetimes. If one counts stars in a population spanning a large range of ages (as in the disk of the Milky Way), one can only construct the present-day mass function (PDMF). In this example, some fraction of the more massive stars with ...
... The second implicit assumption is required due to finite stellar lifetimes. If one counts stars in a population spanning a large range of ages (as in the disk of the Milky Way), one can only construct the present-day mass function (PDMF). In this example, some fraction of the more massive stars with ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.