Evolution of galaxy morphology - Lecture 1 - NCRA-TIFR
... Mass ratio Gas:Stars:Dark Matter - 1:10:100 they are the basic building blocks of the Universe on large scales they show a broad range in their physical properties Understanding of galaxy formation and evolution is one of the main outstanding problems in modern cosmology there are ∼ 1011 galaxies in ...
... Mass ratio Gas:Stars:Dark Matter - 1:10:100 they are the basic building blocks of the Universe on large scales they show a broad range in their physical properties Understanding of galaxy formation and evolution is one of the main outstanding problems in modern cosmology there are ∼ 1011 galaxies in ...
THE MORPHOLOGICAL DEMOGRAPHICS OF GALAXIES IN THE
... We present a morphological analysis of distant field galaxies using the deep ACS images from the public parallel NICMOS observations of the Hubble Ultra Deep Field obtained in the F435W (B 435 ), F606W (V606 ), F775W (i775 ) and F850LP (z850 ) filters. We morphologically segregate galaxies using a c ...
... We present a morphological analysis of distant field galaxies using the deep ACS images from the public parallel NICMOS observations of the Hubble Ultra Deep Field obtained in the F435W (B 435 ), F606W (V606 ), F775W (i775 ) and F850LP (z850 ) filters. We morphologically segregate galaxies using a c ...
Properties and nature of Be stars: 27. Orbital and recent long
... this was the reason for the choice of 200-d normals. We have verified, however, that the result of smoothing is not sensitive to the particular choice of the averaging interval for the smoothing within reasonable limits.) The RV residuals from the smoothing were subjected to a period search based on ...
... this was the reason for the choice of 200-d normals. We have verified, however, that the result of smoothing is not sensitive to the particular choice of the averaging interval for the smoothing within reasonable limits.) The RV residuals from the smoothing were subjected to a period search based on ...
as PDF - Minnesota Academy of Science
... above ihe plane of the solar system. If that comet had been moving near the Earth's surface with the velocity named, it would have swept a firey path seven hundred miles wide, for example, from Minneapolis to Chicago in about two seconds of time. This comet came nearer the Earth than any other large ...
... above ihe plane of the solar system. If that comet had been moving near the Earth's surface with the velocity named, it would have swept a firey path seven hundred miles wide, for example, from Minneapolis to Chicago in about two seconds of time. This comet came nearer the Earth than any other large ...
from z=0 to z=1
... significantly higher SFR, higher attenuation, higher stellar mass, and higher correlation length than LBGs. 7. At intermediate redshifts of z~0.6, UV selected galaxies show moderate evolution in stellar mass in the sense that for a given luminosity, galaxies at z=0.6 have stellar mass ~2 times less ...
... significantly higher SFR, higher attenuation, higher stellar mass, and higher correlation length than LBGs. 7. At intermediate redshifts of z~0.6, UV selected galaxies show moderate evolution in stellar mass in the sense that for a given luminosity, galaxies at z=0.6 have stellar mass ~2 times less ...
the PDF - Montana State University
... to be 5–9% lower than previously estimated, and the amplitude of activity to be small compared to active stars in our sample. A detailed look at the young solar analog HD 30495, which rotates 2.3 times faster than the Sun, reveals a large amplitude ∼12-year activity cycle and an intermittent short-p ...
... to be 5–9% lower than previously estimated, and the amplitude of activity to be small compared to active stars in our sample. A detailed look at the young solar analog HD 30495, which rotates 2.3 times faster than the Sun, reveals a large amplitude ∼12-year activity cycle and an intermittent short-p ...
Untitled - narrowbandimaging.com
... bends light at each end using lenses. Refracting telescopes have three main parts to them: the tube (which is usually made out of metal, plastic or wood) and two convex glass lenses. When light travels through the objective lens, the light refracts, converges and creates a real image in the middle o ...
... bends light at each end using lenses. Refracting telescopes have three main parts to them: the tube (which is usually made out of metal, plastic or wood) and two convex glass lenses. When light travels through the objective lens, the light refracts, converges and creates a real image in the middle o ...
Extragalactic Astronomical Masers I
... nuclear H 2O maser coupled with VLBI imaging at the milliarcsecond angular resolution have enabled to reveal the spatial distribution of the maser and gas kinematics associated with the AGN-activity by its velocity structure. It has been recognized that H2O maser can provide information of the inner ...
... nuclear H 2O maser coupled with VLBI imaging at the milliarcsecond angular resolution have enabled to reveal the spatial distribution of the maser and gas kinematics associated with the AGN-activity by its velocity structure. It has been recognized that H2O maser can provide information of the inner ...
WFC3 Science White Paper - Space Telescope Science Institute
... been among the most productive instruments in the history of astronomy. As HST begins a second decade of operations, its superb imaging performance must continue to be maintained. Accordingly, a new high-performance, panchromatic camera, the Wide Field Camera 3 (hereafter WFC3), is being developed f ...
... been among the most productive instruments in the history of astronomy. As HST begins a second decade of operations, its superb imaging performance must continue to be maintained. Accordingly, a new high-performance, panchromatic camera, the Wide Field Camera 3 (hereafter WFC3), is being developed f ...
A SUB-SATURN MASS PLANET ORBITING HD 36511 Debra A
... this APT are described in Henry (1999). The external precision of the photometric observations, defined as the standard deviation of a seasonal set of differential magnitudes, is typically around 0.0014 mag for the T4 APT, as determined from pairs of constant stars. The differential magnitudes of HD ...
... this APT are described in Henry (1999). The external precision of the photometric observations, defined as the standard deviation of a seasonal set of differential magnitudes, is typically around 0.0014 mag for the T4 APT, as determined from pairs of constant stars. The differential magnitudes of HD ...
Document
... Bursts (GRBs) and can be used as tracers of low mass star formation • At high redshifts, a GRB will show up as a dropout (i.e. selected like an LBG), but will fade rapidly with time • The most distant objects known in the Universe are GRBs (z=8.3) Current Topics: Lyman Break Galaxies - Lecture 4 ...
... Bursts (GRBs) and can be used as tracers of low mass star formation • At high redshifts, a GRB will show up as a dropout (i.e. selected like an LBG), but will fade rapidly with time • The most distant objects known in the Universe are GRBs (z=8.3) Current Topics: Lyman Break Galaxies - Lecture 4 ...
DEDUCING THE LIFETIME OF SHORT GAMMA
... ) is the average SFR per stellar mass for a z = 0 elliptical galaxy of stellar mass Mstar . In what follows, we adopt the different galaxy type samples of Bell et al. (2003) derived using the light concentration parameter. The function dF (Mstar , z)/dMstar is obtained by spline interpolation betwee ...
... ) is the average SFR per stellar mass for a z = 0 elliptical galaxy of stellar mass Mstar . In what follows, we adopt the different galaxy type samples of Bell et al. (2003) derived using the light concentration parameter. The function dF (Mstar , z)/dMstar is obtained by spline interpolation betwee ...
A Technical Comparison of the TMT and the E-ELT
... Adaptive optics will play a central role in all ELT projects. For diffraction limited imaging of point-like sources, the sensitivity grows with aperture as D4, so enormous gains can be realized by ELTs only with the use of AO. Equally important, ELTs can achieve resolution far greater than that of s ...
... Adaptive optics will play a central role in all ELT projects. For diffraction limited imaging of point-like sources, the sensitivity grows with aperture as D4, so enormous gains can be realized by ELTs only with the use of AO. Equally important, ELTs can achieve resolution far greater than that of s ...
FY12 - National Optical Astronomy Observatory
... The NOAO Education and Public Outreach program carried out a broad and varied program that touched on many aspects of the NSF goals of broadening the participation of underrepresented individuals, groups, and institutions. On behalf of AURA, NOAO provided administrative and business services not onl ...
... The NOAO Education and Public Outreach program carried out a broad and varied program that touched on many aspects of the NSF goals of broadening the participation of underrepresented individuals, groups, and institutions. On behalf of AURA, NOAO provided administrative and business services not onl ...
Annual Report 2012
... Much progress has also been made in studying the distant Universe. Rychard Bouwens, Ivo Labbé and Marijn Franx have led several projects to study the most distant galaxies. The pinnacle was the discovery of the most distant object known, with the - as astronomers sometimes jokingly say - telephone ...
... Much progress has also been made in studying the distant Universe. Rychard Bouwens, Ivo Labbé and Marijn Franx have led several projects to study the most distant galaxies. The pinnacle was the discovery of the most distant object known, with the - as astronomers sometimes jokingly say - telephone ...
SPIE Astronomical Telescopes and Instrumentation Technical
... instruments covering the wavelength range of 0.6 μm to 28 μm. JWST’s primary science goal is to detect and characterize the first galaxies. It will also study the assembly of galaxies, star formation, and the formation of evolution of planetary systems. In this paper we will present an overview of r ...
... instruments covering the wavelength range of 0.6 μm to 28 μm. JWST’s primary science goal is to detect and characterize the first galaxies. It will also study the assembly of galaxies, star formation, and the formation of evolution of planetary systems. In this paper we will present an overview of r ...
Galaxies
... These are galaxies with lanes of stars and nebula emanating from a central nucleus Spiral galaxies range from Tightly wound arms and Large central bulge Loosely wound arms and Small central bulge Direct relationship between the tightness of the arms and size of the central bulge Allows classificatio ...
... These are galaxies with lanes of stars and nebula emanating from a central nucleus Spiral galaxies range from Tightly wound arms and Large central bulge Loosely wound arms and Small central bulge Direct relationship between the tightness of the arms and size of the central bulge Allows classificatio ...
Physical Properties of Wolf-Rayet Stars
... they generally involve line strengths or widths, such that strong-/broad-lined stars have been labeled WN-B (Hiltner & Schild 1966), WN-s (Hamann, Koesterke & Wessolowski 1993), or WNb (Smith, Shara & Moffat 1996). Of these, none have generally been adopted. From a physical perspective, strong- and ...
... they generally involve line strengths or widths, such that strong-/broad-lined stars have been labeled WN-B (Hiltner & Schild 1966), WN-s (Hamann, Koesterke & Wessolowski 1993), or WNb (Smith, Shara & Moffat 1996). Of these, none have generally been adopted. From a physical perspective, strong- and ...
- REAL-J
... 4606 FRANZ AGERER, JOACHIM HUEBSCHER: Photoelectric Minima of Selected Eclipsing Binaries and Maxima of Pulsating Stars ...
... 4606 FRANZ AGERER, JOACHIM HUEBSCHER: Photoelectric Minima of Selected Eclipsing Binaries and Maxima of Pulsating Stars ...
pix_disp_config Synopsis Syntax Description
... chips> require("pixlib") chips> pix_init_pixlib chips> pix_disp_config ****** PIXLIB System Configuration ****** Telescope = flight Focal Length (mm) = 10070.000 Detector = ACIS Focal Plane Sys. = FP−1.1 Tiled Detector Plane Sys. = ACIS−2.2 SIM Offset (mm) = (0.684 0.75 236.552) Aim Point(AI1) (mm) ...
... chips> require("pixlib") chips> pix_init_pixlib chips> pix_disp_config ****** PIXLIB System Configuration ****** Telescope = flight Focal Length (mm) = 10070.000 Detector = ACIS Focal Plane Sys. = FP−1.1 Tiled Detector Plane Sys. = ACIS−2.2 SIM Offset (mm) = (0.684 0.75 236.552) Aim Point(AI1) (mm) ...
the stebbins galaxy: the origins of interstellar medium studies
... go into that observatory and there was just a feeling of exhilaration. He had made a milestone and he knew it. (Huffer, 1977). 2 INTRODUCTION The discovery that the Sun is nowhere near the center of our Milky Way galaxy constitutes one of the most significant insights of 20th-century astronomy. It i ...
... go into that observatory and there was just a feeling of exhilaration. He had made a milestone and he knew it. (Huffer, 1977). 2 INTRODUCTION The discovery that the Sun is nowhere near the center of our Milky Way galaxy constitutes one of the most significant insights of 20th-century astronomy. It i ...
REVIEW Early star-forming galaxies and the reionization of the Universe
... understand cosmic reionization—the transformation of neutral hydrogen, mostly located outside galaxies in the intergalactic medium (IGM), into an ionized state. Neutral hydrogen first formed 370,000 years after the Big Bang and released the radiation presently observed as the cosmic microwave backgr ...
... understand cosmic reionization—the transformation of neutral hydrogen, mostly located outside galaxies in the intergalactic medium (IGM), into an ionized state. Neutral hydrogen first formed 370,000 years after the Big Bang and released the radiation presently observed as the cosmic microwave backgr ...
Stellar activity in exoplanet hosts Enrique Herrero Casas
... The high precision photometry provided by the space missions Kepler and CoRoT has allowed not only to discover several hundreds of exoplanetary systems, but also to study stellar variability at most of the timescales where the phenomena related to activity have some significant effect. Spot modelling ...
... The high precision photometry provided by the space missions Kepler and CoRoT has allowed not only to discover several hundreds of exoplanetary systems, but also to study stellar variability at most of the timescales where the phenomena related to activity have some significant effect. Spot modelling ...
The nature of the faint galaxies in the Hubble Deep Field
... galaxy catalogue. Our first approach was to generate independent galaxy catalogues in all four bands. Object identifications and star/galaxy separations were performed, using the PISA software in the Starlink environment. These were further confirmed using the FOCAS/IRAF source identification packag ...
... galaxy catalogue. Our first approach was to generate independent galaxy catalogues in all four bands. Object identifications and star/galaxy separations were performed, using the PISA software in the Starlink environment. These were further confirmed using the FOCAS/IRAF source identification packag ...
ALMA - National Radio Astronomy Observatory
... A project of the National Science Foundation through Associated Universities, Inc. and the National Radio Astronomy Observatory, Caltech, Berkeley, Illinois and Maryland in cooperation with the National Research Council of Canada, and the European Southern Observatory and its partners The Centre Nat ...
... A project of the National Science Foundation through Associated Universities, Inc. and the National Radio Astronomy Observatory, Caltech, Berkeley, Illinois and Maryland in cooperation with the National Research Council of Canada, and the European Southern Observatory and its partners The Centre Nat ...
Leibniz Institute for Astrophysics Potsdam
Leibniz Institute for Astrophysics Potsdam (AIP) is a German research institute. It is the successor of the Berlin Observatory founded in 1700 and of the Astrophysical Observatory Potsdam (AOP) founded in 1874. The latter was the world's first observatory to emphasize explicitly the research area of astrophysics. The AIP was founded in 1992, in a re-structuring following the German Reunification.The AIP is privately funded and member of the Leibniz Association. It is located in Babelsberg in the state of Brandenburg, just west of Berlin, though the Einstein Tower solar observatory and the great refractor telescope on Telegrafenberg in Potsdam belong to the AIP. The key topics of the AIP are cosmic magnetic fields (magnetohydrodynamics) on various scales and extragalactic astrophysics. Astronomical and astrophysical fields studied at the AIP range from solar and stellar physics to stellar and galactic evolution to cosmology. The institute also develops research technology in the fields of spectroscopy and robotic telescopes. It is a partner of the Large Binocular Telescope in Arizona, has erected robotic telescopes in Tenerife and the Antarctic, develops astronomical instrumentation for large telescopes such as the VLT of the ESO. Furthermore, work on several e-Science projects are carried out at the AIP.