ppt - A century of cosmology
... • require more Lya photons per unit halo mass, achievable through 1) increase in star formation efficiency or 2) change in IMF • possibilities tantalizing but more work needed to confirm candidates and additional survey volume needed to confirm densities. ...
... • require more Lya photons per unit halo mass, achievable through 1) increase in star formation efficiency or 2) change in IMF • possibilities tantalizing but more work needed to confirm candidates and additional survey volume needed to confirm densities. ...
3min
... -Front-end visualization tools in Python or other languages -Phone app for simplified simulation, for educating the masses -More mathematical topics related to actual simulation -Data assimilation: comparing the model to observations -Physics / math knowledge helpful but not necessary ...
... -Front-end visualization tools in Python or other languages -Phone app for simplified simulation, for educating the masses -More mathematical topics related to actual simulation -Data assimilation: comparing the model to observations -Physics / math knowledge helpful but not necessary ...
Talk to me about majoring in physics or astronomy!
... This figure shows how galaxies may have evolved, from early irregulars through active galaxies, to the normal ellipticals and spirals we ...
... This figure shows how galaxies may have evolved, from early irregulars through active galaxies, to the normal ellipticals and spirals we ...
REFRACTION OF LIGHT
... A lens is a transparent material bound by two curved surfaces. Lenses are broadly classified into two categories depending on their surfaces. Convex lens : A convex lens is made by joining two spherical surfaces in such a way that it is thicker at the centre. Its thickness gradually reduces as we mo ...
... A lens is a transparent material bound by two curved surfaces. Lenses are broadly classified into two categories depending on their surfaces. Convex lens : A convex lens is made by joining two spherical surfaces in such a way that it is thicker at the centre. Its thickness gradually reduces as we mo ...
Chapter22_New
... I like to use the subject of the size and shape of the galaxy as an example of the way that science often proceeds by fits and starts with some wrong turns. I treat the work of Herschel and Kapteyn, though basically wrong, with respect. 3. The Rotation of the Milky Way Rotation curves for other gala ...
... I like to use the subject of the size and shape of the galaxy as an example of the way that science often proceeds by fits and starts with some wrong turns. I treat the work of Herschel and Kapteyn, though basically wrong, with respect. 3. The Rotation of the Milky Way Rotation curves for other gala ...
Los Angeles Astronomical - LIGO
... Light from distant stars are bent as they graze the Sun. The exact amount is predicted by Einstein's theory. ...
... Light from distant stars are bent as they graze the Sun. The exact amount is predicted by Einstein's theory. ...
Microlensing Studies in Crowded Fields
... GravityCam will see approximately 0.5x106 stars with I<22. • With six pointings, around 3x106 stars in one hour. • The I=22 stars will have ~10,000 photons detected in 10 min, so with SNR ~ 80-100 after sky background correction. • With an optical depth of ~2.4x10-6 (MACHO & OGLE estimates) we expec ...
... GravityCam will see approximately 0.5x106 stars with I<22. • With six pointings, around 3x106 stars in one hour. • The I=22 stars will have ~10,000 photons detected in 10 min, so with SNR ~ 80-100 after sky background correction. • With an optical depth of ~2.4x10-6 (MACHO & OGLE estimates) we expec ...
Problem 4 : a. (20 points)
... As we’ve discussed many times in class, for a mass m moving with speed v in a circular orbit of radius r about a much larger mass M, F=ma is written as v2 GMm -------------- = m ----r r2 which tells us that the “mass in the middle” is ...
... As we’ve discussed many times in class, for a mass m moving with speed v in a circular orbit of radius r about a much larger mass M, F=ma is written as v2 GMm -------------- = m ----r r2 which tells us that the “mass in the middle” is ...
Document
... from a closely orbiting star before this material falls into the black hole in binary X-ray sources. Radiation is associated with an accretion disk surrounding the black ...
... from a closely orbiting star before this material falls into the black hole in binary X-ray sources. Radiation is associated with an accretion disk surrounding the black ...
The Star–Gas–Star Cycle
... Regions of the Milky Way Galaxy diameter of disk = 100,000 l.y. (30,000 pc) thickness of disk = 1,000 l.y. (300 pc) number of stars = 200 billion ...
... Regions of the Milky Way Galaxy diameter of disk = 100,000 l.y. (30,000 pc) thickness of disk = 1,000 l.y. (300 pc) number of stars = 200 billion ...
Einstein`s Lens presentation (Mac)
... …appears shifted because of the bending. http://www.universeforum.org/einstein/ ...
... …appears shifted because of the bending. http://www.universeforum.org/einstein/ ...
angular size
... Astronomical Unit (AU) – One AU is the average distance between Earth and Sun – 1.496 X 108 km or 92.96 million miles – Jupiter: 5.2 AU from the Sun Light Year (ly) – One ly is the distance light can travel in one year at a speed of about 3 x 105 km/s or 186,000 miles/s – 9.46 X 1012 km or 63,24 ...
... Astronomical Unit (AU) – One AU is the average distance between Earth and Sun – 1.496 X 108 km or 92.96 million miles – Jupiter: 5.2 AU from the Sun Light Year (ly) – One ly is the distance light can travel in one year at a speed of about 3 x 105 km/s or 186,000 miles/s – 9.46 X 1012 km or 63,24 ...
ISP205-2 Visions of the Universe The Big Questions
... A cavity has blown-out, so we can see in. ...
... A cavity has blown-out, so we can see in. ...
word document - FacStaff Home Page for CBU
... In Section A we consider the organization and structure of all the stars and star clusters that are anywhere near us. This group of stars we call the Milky Way Galaxy. In Section B we find that by looking out beyond our own galaxy that there are other separate groups of stars, i.e., other galaxies. ...
... In Section A we consider the organization and structure of all the stars and star clusters that are anywhere near us. This group of stars we call the Milky Way Galaxy. In Section B we find that by looking out beyond our own galaxy that there are other separate groups of stars, i.e., other galaxies. ...
Einstein`s Lens presentation (PC)
... http://www.universeforum.org/einstein/ http://www.universeforum.org/einstein/ http://www.universeforum.org/einstein/ ...
... http://www.universeforum.org/einstein/ http://www.universeforum.org/einstein/ http://www.universeforum.org/einstein/ ...
Astrophysics for the next decade
... EMIR (GTC), JWST, E-ELT Based on Bergeron (2009) Science with the VLT in the ELT Era ...
... EMIR (GTC), JWST, E-ELT Based on Bergeron (2009) Science with the VLT in the ELT Era ...
A Mechanism for Gravitational Energy Transfering to
... • If electric fields are weak and slowly vary in space and time, the validity of local and instantaneous approximation can be justified. However, electric fields are so strong (overcritical) and fast vary in space and time, that very rapid electric processes, like electron- positron pair productions ...
... • If electric fields are weak and slowly vary in space and time, the validity of local and instantaneous approximation can be justified. However, electric fields are so strong (overcritical) and fast vary in space and time, that very rapid electric processes, like electron- positron pair productions ...
