'Galaxy evolution' diaporamas de présentation

ALFALFA: Preliminary Results from a strip through Virgo

ALFALFA: Preliminary Results from a strip through Virgo. Catalog in preparation: Brian Kent et al. RA: 09:00h to 14:00h Dec: 12deg to 16deg Solid Angle: 291 sq deg (4% of survey). Catalog in preparation: Sabrina Stierwalt et al. R. Giovanelli Cornell University.

542 views • 44 slides

The Stellar Populations, Mass-to-Light Ratios and Dark Matter in Spiral Galaxies

The Stellar Populations, Mass-to-Light Ratios and Dark Matter in Spiral Galaxies. Roelof S. de Jong Steward Observatory. Eric Bell Rob Kennicutt Rob Swaters Rob Olling Don McCarthy Cedric Lacey. Overview. Introduction Ages and metallicities of stellar populations description of method

538 views • 38 slides

Missing Photons that Count: Galaxy Evolution via Absorbing Gas

Missing Photons that Count: Galaxy Evolution via Absorbing Gas. (and a little bit of fundamental physics to boot). Chris Churchill. (Penn State). Quasars: physics laboratories in the early universe. quasar. To Earth. Ly b. Ly a. SiII. CIV. SiII. CII. SiIV. Lyman limit. Ly a em.

445 views • 36 slides

Magnetic field excitation in galaxies

496 views • 34 slides

Missing Photons that Count: Galaxy Evolution via Absorbing Gas

Missing Photons that Count: Galaxy Evolution via Absorbing Gas. (and a little bit of fundamental physics to boot). Chris Churchill. (Penn State). Quasars: physics laboratories in the early universe. quasar. To Earth. Ly b. Ly a. SiII. CIV. SiII. CII. SiIV. Lyman limit. Ly a em.

423 views • 34 slides

21cm cosmology

21cm cosmology. T. Chang, UP, J. Peterson, P. McDonald PRL 100, 091303 (2008) UP, L. Staveley-Smith, J. Peterson, T. Chang, MNRAS, 394, 6 (2009). 21cm: HI hyperfine transition. Hydrogen is the most abundant element in the universe

476 views • 33 slides

The Dark Side of the Universe

520 views • 32 slides

Galaxies

Galaxies. Galaxy Classification. Spiral (S) Elliptical (E) Irregulars (Irr). Normal Spirals. Sa, Sb, Sc From a to c Bulge becomes smaller Arms less tightly wound. Barred Spirals. SBa, SBb, SBc A to b to c similar to normal spirals. Arms at end of a bar passing though bulge.

492 views • 31 slides

Galaxies

Galaxies. DAY 2: Galaxy Evolution. Messier Objects. http://www.skyimagelab.com/messierimages.html. Hubble Ultra Deep Field (HUDF). Composited from Hubble Space Telescope data accumulated over 11 days in 2003.

488 views • 30 slides

Super star clusters and star-formation in interacting galaxies

Super star clusters and star-formation in interacting galaxies. Zara RANDRIAMANAKOTO. Supervisors : Petri Vaisanen (SAAO) ? Sarah Blyth (UCT) ?. SA SKA Annual Bursary Conference December, 2009. Objectives.

457 views • 27 slides

Surveys of high-z galaxies and galaxy clusters with Herschel and SCUBA-2

Surveys of high-z galaxies and galaxy clusters with Herschel and SCUBA-2. Eelco van Kampen University of Innsbruck, Austria. Stars. Dust. Dust emission: far-IR & sub-mm. PACS SPIRE. Dusty star-forming galaxies emit much of their light at IR to mm wavelengths.

411 views • 24 slides

Pulsar Timing and Galaxy Evolution

Common Ground in the GWB. Pulsar Timing and Galaxy Evolution. Sarah Burke Swinburne University/ATNF ATNF GW Mtg December 12, 2008. Supervisors: Matthew Bailes, David Barnes, Simon Johnston, Dick Manchester. In collaboration with: Dick Manchester, Ron Ekers, Chris Phillips. CLAIM.

393 views • 22 slides

GEMS: The Evolution of Disc Galaxies

GEMS: The Evolution of Disc Galaxies. Marco Barden. Galaxy Evolution. Archaeology ? Look-back approach Galaxy evolution ? Population evolution Important because: Even in local universe 60-80% discs Most of all stars form in discs Most of the stars of the MW formed since z~1

356 views • 19 slides

FMOS Overview

FMOS Overview. Oxford, 22nd June 2009. FMOS: Fibre Multi-Object Spectrograph. Logical successor to 2dF Wide-Field IR spectroscopy on 8m telescope, high throughput and ultra-low background (OH Airglow-Suppressed) for low resolution survey spectroscopy

318 views • 18 slides

Dust formation in Asymptotic Giant Branch stars

Ambra Nanni SISSA, Trieste (IT) In collaboration with A. Bressan (SISSA), P. Marigo (UNIPD) & L. Danese (SISSA). Dust formation in Asymptotic Giant Branch stars. Introduction. - AGB Stars considered to account for ~50-60% (Gehrz 89) ISM dust in the local Universe

288 views • 17 slides

ELLIPTICALS AND HIGH-REDSHIFT UNIVERSE: D iscussion

ELLIPTICALS AND HIGH-REDSHIFT UNIVERSE: D iscussion. Francesco Calura INAF/O. A. Bologna. A few Questions still open, from:. Pagel, B., 2002, ASPC, 253, 509. How do galaxies form? When do the stellar populations of their sub-components form?

231 views • 14 slides

A GALEX and NDWFS Investigation of Star Forming Galaxies at z=1 and 2

A GALEX and NDWFS Investigation of Star Forming Galaxies at z=1 and 2. Charles G. Hoopes, Timothy M. Heckman (JHU) Buell T. Jannuzi, Arjun Dey, Michael J. I. Brown, Alison Ford (NOAO) and Davis Schiminovich (Columbia) June 2, 2004. The Galaxy Evolution Explorer (GALEX).

273 views • 12 slides

Science Motivation

Science Motivation. Comparative planetology of the outer planets is key to understanding the origin & evolution of the solar system. Deep, well-mixed atmospheres must be characterized. Abundance of water, thought to be the primary carrier of heavy elements to outer planets, must be determined.

239 views • 11 slides

How Do Supermassive Black Holes Get Starved?

How Do Supermassive Black Holes Get Starved?. Q. D. Wang, Z. Y. Li, S.-K. Tang University of Massachusetts B. Wakker University of Wisconsin. M31 Bulge: a Case Study. The SMBH of M bh ~ 2 x 10 8 Msun ; the observed upper limit Lx ~ 1 x 10 36 erg/s.

298 views • 7 slides

Questions on The Role of Black Holes in Galaxy Evolution

219 views • 6 slides