2013 - Society for Astronomical Sciences
... limited to impact speeds of less than 10 km/sec. Observing projects over the years have attempted to make use of this fact with limited success. Apollo seismometers left on the lunar surface in the 1970’s registered many instances of moonquakes, some of which were produced by meteoroid impacts. This ...
... limited to impact speeds of less than 10 km/sec. Observing projects over the years have attempted to make use of this fact with limited success. Apollo seismometers left on the lunar surface in the 1970’s registered many instances of moonquakes, some of which were produced by meteoroid impacts. This ...
ASTR 110 Lab Manual Sections M02 M03 M04
... they are looking at, and submit their results for publication. Along the way astronomers use all of the mathematical techniques and physics necessary to understand the objects they examine. Thus, just like any other science, a large number of mathematical tools and concepts are needed to perform ast ...
... they are looking at, and submit their results for publication. Along the way astronomers use all of the mathematical techniques and physics necessary to understand the objects they examine. Thus, just like any other science, a large number of mathematical tools and concepts are needed to perform ast ...
Article PDF - IOPscience
... optical/near-IR survey telescope system located at the Haleakalā Observatory on the island of Maui in Hawai‘i. The largest survey undertaken by the telescope, the PS1 3p survey (Chambers 2011), has observed the entire sky north of decl. -30 in five filter bands (Stubbs et al. 2010; Tonry et al. 2012 ...
... optical/near-IR survey telescope system located at the Haleakalā Observatory on the island of Maui in Hawai‘i. The largest survey undertaken by the telescope, the PS1 3p survey (Chambers 2011), has observed the entire sky north of decl. -30 in five filter bands (Stubbs et al. 2010; Tonry et al. 2012 ...
Circumstellar dust emission from nearby Solar
... Far-infrared excess above the photosphere of a star indicates the presence of a circumstellar dust disc, which is a sign-post for extrasolar planets, and was first detected in the mid 1980s. Dust discs are intricately connected to planets and planetesimals, give insights in the dynamics and evolutio ...
... Far-infrared excess above the photosphere of a star indicates the presence of a circumstellar dust disc, which is a sign-post for extrasolar planets, and was first detected in the mid 1980s. Dust discs are intricately connected to planets and planetesimals, give insights in the dynamics and evolutio ...
The Big Eye Now and Then
... some evening events for the Friends. Along with the telescope came a wealth of eyepieces and related equipment that make viewing through this telescope a delight. In his memory, the family of Winfried Beykirch donated some items that are useful for daytime astronomy. These items will give weekend vi ...
... some evening events for the Friends. Along with the telescope came a wealth of eyepieces and related equipment that make viewing through this telescope a delight. In his memory, the family of Winfried Beykirch donated some items that are useful for daytime astronomy. These items will give weekend vi ...
Ferraro et al. 2006
... • Given its high luminosity (Mv=-9.4) and and half-mass radius (rh=25pc; Bellazzini 2007) NGC2419 lies (together with OmegaCen) Ripepi et al. 2007 in the (rh, MV )plane well above the locus defined by all the other Galactic GCs thus suggesting it might be the stripped core of a former dwarf galaxy ( ...
... • Given its high luminosity (Mv=-9.4) and and half-mass radius (rh=25pc; Bellazzini 2007) NGC2419 lies (together with OmegaCen) Ripepi et al. 2007 in the (rh, MV )plane well above the locus defined by all the other Galactic GCs thus suggesting it might be the stripped core of a former dwarf galaxy ( ...
Annual Report 2006/2007
... is the brightest radio source in the sky, and has been created by a supernova explosion about 330 year ago. The star itself had a mass of around 20 times the mass of the sun, but by the time it exploded it must have lost most of the outer layers. The red and green colors in the image are obtained fr ...
... is the brightest radio source in the sky, and has been created by a supernova explosion about 330 year ago. The star itself had a mass of around 20 times the mass of the sun, but by the time it exploded it must have lost most of the outer layers. The red and green colors in the image are obtained fr ...
Module1: Scale of the Universe
... (Optional)Discussion:#Problems#with#Parallax:# It&sounds&fairly&easy&to&measure&the&distance&to&another☆&just&make&two& measurements&of&its&position&six&months&apart.&& In&practice,&however,&it&is&very&difBicult.&The&Birst&successful&measurement&of&stellar& parallax&came&more&than&two&hundred&y ...
... (Optional)Discussion:#Problems#with#Parallax:# It&sounds&fairly&easy&to&measure&the&distance&to&another☆&just&make&two& measurements&of&its&position&six&months&apart.&& In&practice,&however,&it&is&very&difBicult.&The&Birst&successful&measurement&of&stellar& parallax&came&more&than&two&hundred&y ...
JWST Project Report to the PMC
... 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large aperture, cryogenic telescope placed at L2, with a detailed error budget and careful instrument characterization prior to launch. ...
... 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large aperture, cryogenic telescope placed at L2, with a detailed error budget and careful instrument characterization prior to launch. ...
Astronomy and Astrophysics (ASTRO) Iowa State University – 2013-2014 1
... ASTRO 106L. Earth and Space Science for Elementary Education Majors: Laboratory. (Cross-listed with GEOL). (0-2) Cr. 1. F.S. Prereq: Restricted to elementary and early childhood education majors; to be taken concurrently with GEOL 106/ ASTRO 106 Inquiry-based lab exploring fundamental concepts of Ea ...
... ASTRO 106L. Earth and Space Science for Elementary Education Majors: Laboratory. (Cross-listed with GEOL). (0-2) Cr. 1. F.S. Prereq: Restricted to elementary and early childhood education majors; to be taken concurrently with GEOL 106/ ASTRO 106 Inquiry-based lab exploring fundamental concepts of Ea ...
Evolution in circumstellar envelopes of Be stars: From disks to rings?
... In the beginning of 2000, however, the H i emission wings were present again, which is a reliable indicator of a new outburst à la µ Cen (Rivinius et al. 1998a). At the same time the Fe ii and Si ii line emission reappeared with a large width. The narrower doublepeaked emission in O i 8446 had lost ...
... In the beginning of 2000, however, the H i emission wings were present again, which is a reliable indicator of a new outburst à la µ Cen (Rivinius et al. 1998a). At the same time the Fe ii and Si ii line emission reappeared with a large width. The narrower doublepeaked emission in O i 8446 had lost ...
Article PDF - IOPscience
... Vennes (2006), and Subasavage et al. (2007, 2008), with some contributions from other studies (see references in Sion et al. 2009). We increased the sample size by taking into account all possible white dwarfs that could lie within the uncertainties inside the 20 pc region, which means including all ...
... Vennes (2006), and Subasavage et al. (2007, 2008), with some contributions from other studies (see references in Sion et al. 2009). We increased the sample size by taking into account all possible white dwarfs that could lie within the uncertainties inside the 20 pc region, which means including all ...
bode elert johann
... collection of astronomical tables, made in partnership with Johann Heinrich Lambert and Johann Karl Gottlieb Schulze. Vol. i contains an 89-page star catalogue, compiled by Bode.12 This “Stern-Verzeichnis nach vier Astronomen” assembles the star catalogues of Hevelius, Flamsteed, Lacaille and Bradle ...
... collection of astronomical tables, made in partnership with Johann Heinrich Lambert and Johann Karl Gottlieb Schulze. Vol. i contains an 89-page star catalogue, compiled by Bode.12 This “Stern-Verzeichnis nach vier Astronomen” assembles the star catalogues of Hevelius, Flamsteed, Lacaille and Bradle ...
The Milky Way`s external disc constrained by 2MASS star counts
... warps independently. As such, it is not possible for us to create a stellar overdensity in the model by a misalignment of the stellar and dusty warps. Figure 3 (top panel) shows 2MASS star counts in the longitude ranges 120◦ to 60◦ and −60◦ to −120◦ . They are compared with simulated star counts obt ...
... warps independently. As such, it is not possible for us to create a stellar overdensity in the model by a misalignment of the stellar and dusty warps. Figure 3 (top panel) shows 2MASS star counts in the longitude ranges 120◦ to 60◦ and −60◦ to −120◦ . They are compared with simulated star counts obt ...
Dynamical evolution of planetary systems
... The apparent regularity of the motion of the giant planets of our solar system suggested for decades that said planets formed onto orbits similar to the current ones and that nothing dramatic ever happened during their lifetime. The discovery of extra-solar planets showed astonishingly that the orbi ...
... The apparent regularity of the motion of the giant planets of our solar system suggested for decades that said planets formed onto orbits similar to the current ones and that nothing dramatic ever happened during their lifetime. The discovery of extra-solar planets showed astonishingly that the orbi ...
Spectropolarimetry of the massive post
... We p res en t med i u m res o l u t i on s p ect rop o l ari met r y an d l o n g t erm p h o t o polarimetry of two massive post-red supergiants, IRC +10420 and HD 179821. The data provide new information on their circumstellar material as well as their evolution. In IRC +10420, the polarization of ...
... We p res en t med i u m res o l u t i on s p ect rop o l ari met r y an d l o n g t erm p h o t o polarimetry of two massive post-red supergiants, IRC +10420 and HD 179821. The data provide new information on their circumstellar material as well as their evolution. In IRC +10420, the polarization of ...
13.1 Galaxy Evolution: Introduction
... formed - because stars of different masses can evolve at very different pace. Then, for each stellar mass and and age we need a spectrum. So, we need libraries of stellar spectra that can be associated with all components of the stellar population at any given age. This is actually ...
... formed - because stars of different masses can evolve at very different pace. Then, for each stellar mass and and age we need a spectrum. So, we need libraries of stellar spectra that can be associated with all components of the stellar population at any given age. This is actually ...