ISP 205: Visions of the Universe
... • How did we come to be? — The matter in our bodies came from the Big Bang, which produced hydrogen and helium. — All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. Copyright © 2012 Pearson Education, Inc. ...
... • How did we come to be? — The matter in our bodies came from the Big Bang, which produced hydrogen and helium. — All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. Copyright © 2012 Pearson Education, Inc. ...
1 Chapter 1: Our Place in the Universe
... How far away are the stars? How big is the Milky Way Galaxy? How big is the Universe? How do our lifetimes compare to the age of the Universe? ...
... How far away are the stars? How big is the Milky Way Galaxy? How big is the Universe? How do our lifetimes compare to the age of the Universe? ...
Brown et al. 2008 Studying Resolved Stellar
... stars. Still, colors of RGB stars are much more sensitive to metallicity than to age, so that a reasonable determination of the metallicity distribution can be done in spite of the age metallicity degeneracy (e.g. Rejkuba et al. 2005). Observations of the main-sequence turnoff will provide the most ...
... stars. Still, colors of RGB stars are much more sensitive to metallicity than to age, so that a reasonable determination of the metallicity distribution can be done in spite of the age metallicity degeneracy (e.g. Rejkuba et al. 2005). Observations of the main-sequence turnoff will provide the most ...
The Extragalactic Group of MPE and USM
... of Massive Galaxies in the FORS Deep and GOODS South fields • Study evolution of galaxies with broadband deep U to K surveys. • LFs, Mass Functions, SFRs do not require spectroscopy but can be derived with accurate photometric redshifts. • Advantage of photo z: no color selection bias, fainter lumin ...
... of Massive Galaxies in the FORS Deep and GOODS South fields • Study evolution of galaxies with broadband deep U to K surveys. • LFs, Mass Functions, SFRs do not require spectroscopy but can be derived with accurate photometric redshifts. • Advantage of photo z: no color selection bias, fainter lumin ...
Ideas and Researches on Physical Concepts in India*
... central focus to Nature (prakti), in place of Gods, as a limitless entity which is self-existent. The Sāmkhya recognized five elements in nature: kiti (earth), āpa (water), tejas (fire), vāyu (air) and ākāśa (space) both at the atomic (paramāu) and molecular (au) level with guas [sattva, rajas, ...
... central focus to Nature (prakti), in place of Gods, as a limitless entity which is self-existent. The Sāmkhya recognized five elements in nature: kiti (earth), āpa (water), tejas (fire), vāyu (air) and ākāśa (space) both at the atomic (paramāu) and molecular (au) level with guas [sattva, rajas, ...
spectral lines as distant measurement tools
... Stars to the right have red appearance, to the left they are blue. The stellar brightness is measured as “photographic magnitude”, an inverted logarithmic scale for the amount of light received from different stars if they were all placed at the same distance. The diagram is not filled randomly, but ...
... Stars to the right have red appearance, to the left they are blue. The stellar brightness is measured as “photographic magnitude”, an inverted logarithmic scale for the amount of light received from different stars if they were all placed at the same distance. The diagram is not filled randomly, but ...
Building` a Galaxy SED
... growth of structure in our Universe in linear + non-linear regimes (spherical collapse) Gaussian random fields, Press-Schechter theory, dark matter halo mass functions baryonic physics of galaxy formation (gas accretion, cooling, feedback processes) formation & evolution of supermassive black holes ...
... growth of structure in our Universe in linear + non-linear regimes (spherical collapse) Gaussian random fields, Press-Schechter theory, dark matter halo mass functions baryonic physics of galaxy formation (gas accretion, cooling, feedback processes) formation & evolution of supermassive black holes ...
Hubble Diagram Instruction Sheet
... The Hubble diagram demonstrated that a galaxy’s redshift increased linearly with its distance from Earth. The farther away a galaxy is, the faster it moves away from us. The simplest explanation for Hubble’s observation was that the entire universe is expanding, just as Einstein's equations predicte ...
... The Hubble diagram demonstrated that a galaxy’s redshift increased linearly with its distance from Earth. The farther away a galaxy is, the faster it moves away from us. The simplest explanation for Hubble’s observation was that the entire universe is expanding, just as Einstein's equations predicte ...
Galaxy / Cluster Ecosystem Ming Sun (University of Alabama in Huntsville)
... ( ~ solar) and hotter than stars (spec = 0.3 – 1.1). Origin: a) galactic cool cores (stellar mass loss); b) remnants of large cool cores after stripping or AGN heating? Embedded coronae are mini cool cores with boundary conditions. Conduction is suppressed over the boundary (~ 100 x on average). Th ...
... ( ~ solar) and hotter than stars (spec = 0.3 – 1.1). Origin: a) galactic cool cores (stellar mass loss); b) remnants of large cool cores after stripping or AGN heating? Embedded coronae are mini cool cores with boundary conditions. Conduction is suppressed over the boundary (~ 100 x on average). Th ...
- Schwab`s Writings
... the universe over the past 14 billion years – at least as far as is inferred from observations 11). The fact (see Relativity Theory) that time flows at a constant rate for any one observer, but appears to flow at different rates for observers moving relative to each other (and possibly stops in “Bla ...
... the universe over the past 14 billion years – at least as far as is inferred from observations 11). The fact (see Relativity Theory) that time flows at a constant rate for any one observer, but appears to flow at different rates for observers moving relative to each other (and possibly stops in “Bla ...
astronomy (astr)
... ASTR 503. Structure and Evolution of Galaxies. 3 Credits. Internal dynamics and structure of galaxies; physics of star formation, active galactic nuclei, and galaxy interactions; large-scale clustering and environment-dependent physical processes; evolution of the galaxy population over cosmic time. ...
... ASTR 503. Structure and Evolution of Galaxies. 3 Credits. Internal dynamics and structure of galaxies; physics of star formation, active galactic nuclei, and galaxy interactions; large-scale clustering and environment-dependent physical processes; evolution of the galaxy population over cosmic time. ...
Chapter 15 Stars, Galaxies, and Universe
... Galaxies •Huge group of single stars, star systems, star clusters, dust and gas •Many have black holes in center •Billions of stars in galaxy •Billions of galaxies in universe •Quasar – distant, very bright young galaxy with black hole in center. ...
... Galaxies •Huge group of single stars, star systems, star clusters, dust and gas •Many have black holes in center •Billions of stars in galaxy •Billions of galaxies in universe •Quasar – distant, very bright young galaxy with black hole in center. ...
EvoluGon of high mass stars Solar-‐type stars end their lives by
... the extremely short period. The discovery of a pulsar in the Crab nebula, a well-‐known supernova remnant (the supernova was recorded in Chinese records from 1054), finally demonstrated that the pulsars ...
... the extremely short period. The discovery of a pulsar in the Crab nebula, a well-‐known supernova remnant (the supernova was recorded in Chinese records from 1054), finally demonstrated that the pulsars ...
TYPES OF RADIATION IN SPACE
... Radiation is defined as energy in transit in the form of high-speed particles or electromagnetic waves. Radiation may be classified as: 1. Ionizing radiation - is the type of radiation that has sufficient energy to create charged particles (ions) from atoms by removing electrons. Ionizing radiation ...
... Radiation is defined as energy in transit in the form of high-speed particles or electromagnetic waves. Radiation may be classified as: 1. Ionizing radiation - is the type of radiation that has sufficient energy to create charged particles (ions) from atoms by removing electrons. Ionizing radiation ...
X-ray Astronomy and the search for Black Holes
... • The hard X-rays are optical thin, thermal emission from the accreting plasma, as also seen in magnetic and non-magnetic CVs • These symbiotic stars have harder spectra than non-magnetic CVs • Yet they are unlikely to have a magnetic white dwarf • Non-magnetic CVs can have high temperatures if the ...
... • The hard X-rays are optical thin, thermal emission from the accreting plasma, as also seen in magnetic and non-magnetic CVs • These symbiotic stars have harder spectra than non-magnetic CVs • Yet they are unlikely to have a magnetic white dwarf • Non-magnetic CVs can have high temperatures if the ...
Observational Constraints on Hot Gas Accretion
... Fit: A “beta” surface brightness component, a point source (< 5 kpc) + background ...
... Fit: A “beta” surface brightness component, a point source (< 5 kpc) + background ...
Formation of z~6 Quasars from Hierarchical Galaxy Mergers
... their spectra (places them at the end of the epoch of reionization) ¥ Lack of evolution in their SED compared to low redshift Quasars ...
... their spectra (places them at the end of the epoch of reionization) ¥ Lack of evolution in their SED compared to low redshift Quasars ...
Feedback - Cambridge University Press
... suppression of star formation on small scale, but rather the result of a balance between dynamical pressure and the force (or rate of momentum deposition) provided by stellar feedback, either in the form of radiation pressure or by supernovae. Galaxy scale winds can also be driven by feedback, eithe ...
... suppression of star formation on small scale, but rather the result of a balance between dynamical pressure and the force (or rate of momentum deposition) provided by stellar feedback, either in the form of radiation pressure or by supernovae. Galaxy scale winds can also be driven by feedback, eithe ...
eng_gw150914
... SN1987A, on gravitational antenna with sensitivity Δl/l ~10-16 in the band Δ f ~10Hz. There is also a message of SN1987A impact on the increase in plutonium-239 alpha decay rate of 1%, which coincides in time with the gravity and the first neutrino signal [11]. The second neutrino signal registered ...
... SN1987A, on gravitational antenna with sensitivity Δl/l ~10-16 in the band Δ f ~10Hz. There is also a message of SN1987A impact on the increase in plutonium-239 alpha decay rate of 1%, which coincides in time with the gravity and the first neutrino signal [11]. The second neutrino signal registered ...
Slide 1
... All collect and focus radiation and resolve details False-color pictures to show images Some wavelengths must be observed from space ...
... All collect and focus radiation and resolve details False-color pictures to show images Some wavelengths must be observed from space ...
A6 - Vicphysics
... could then issue a second pair of charts, this time for an hour later or the same time but at a different location but again showing much the same region of sky. Inspection by the students should lead them to realise that the alt-az coordinates are different but the Right Ascension, declination (RA- ...
... could then issue a second pair of charts, this time for an hour later or the same time but at a different location but again showing much the same region of sky. Inspection by the students should lead them to realise that the alt-az coordinates are different but the Right Ascension, declination (RA- ...
AGN surveys to study galaxy evolution along cosmic times
... Spinoglio (1993). For comparison, we also show the average spectrum of starburst galaxies (Bernard-Salas et al. 2009). The quality of the data is very high and shows the many features that can distinguish between AGN and star formation processes, such as the high-ionization lines from [NeV] originat ...
... Spinoglio (1993). For comparison, we also show the average spectrum of starburst galaxies (Bernard-Salas et al. 2009). The quality of the data is very high and shows the many features that can distinguish between AGN and star formation processes, such as the high-ionization lines from [NeV] originat ...
SXDS Highlights : Subaru / FOCAS Spectroscopy
... HST/NICMOS H-band Observations are not sufficient ! H-band observation only covers up to 4000A in the rest-frame, and star-forming regions can dominate the morphology. HST/NICMOS sample is limited to a small number of objects in Hubble Deep Field and does not have bright (~Mv*) galaxies at z~3. The ...
... HST/NICMOS H-band Observations are not sufficient ! H-band observation only covers up to 4000A in the rest-frame, and star-forming regions can dominate the morphology. HST/NICMOS sample is limited to a small number of objects in Hubble Deep Field and does not have bright (~Mv*) galaxies at z~3. The ...