'Stellar spectra' diaporamas de présentation

12.007 Geobiology

1.01k views • 54 slides

Cedric Lacey

Multi-wavelength modelling of galaxy evolution: Lecture 1: Computing galaxy SEDs from the UV to the radio. Cedric Lacey. Outline. Stars Stellar evolution Stellar spectra Integrated spectra of stellar populations Dust Extinction Emission Radio Thermal radio emission

714 views • 51 slides

Multi-line Analysis of Stellar Spectra in VO Environment

542 views • 43 slides

17. The Nature of the Stars

17. The Nature of the Stars. Parallax reveals stellar distance Stellar distance reveals luminosity Luminosity reveals total energy production The stellar magnitude scale Surface temperature determines stellar color Stellar spectra reveal chemical composition

649 views • 42 slides

TEMPERATURE

436 views • 30 slides

STARK BROADENING IN PRE WHITE DWARFS, WHITE DWARFS AND NEUTRON STARS

STARK BROADENING IN PRE WHITE DWARFS, WHITE DWARFS AND NEUTRON STARS Milan S. Dimitrijevi ? and Zoran Simi?. STARK BROADENING IS IMPORTANT FOR: - ASTROPHYSICAL PLASMAS - LABORATORY PLASMAS - TECHNOLOGICAL PLASMAS. STARK BROADENING DATA ARE NEEDED IN ASTROPHYSICS FOR EXAMPLE FOR: `.

297 views • 29 slides

Mining the LAMOST Spectral Archive

343 views • 20 slides

Mining the LAMOST Spectral Archive

333 views • 20 slides

Starlight: how the physics of electromagnetism provides a key to the stars

Starlight: how the physics of electromagnetism provides a key to the stars. Light is the only information we get from most astronomical objects. To understand these objects, we need to understand the physics of light and how it is produced. First result: light is a wave (electromagnetic wave).

202 views • 20 slides

The Geiger - Marsden Experiment aka Rutherfords Gold Foil Experiment

The Geiger - Marsden Experiment aka Rutherfords Gold Foil Experiment. The Geiger - Marsden Experiment aka Rutherfords Gold Foil Experiment. We get a planetary view of the atom Nucleus 1/10,000 atoms diameter 99.9% of atoms mass is in the nucleus BUT.....!!!. 1913 Niels Bohr.

836 views • 19 slides

Basics of Astronomy

Basics of Astronomy. Casey McNamara. THE UNIVERSE. EVERYTHING. Galaxies, solar systems, planets, stars, black holes, clusters, dark matter, AGN. Galaxies. Elliptical. Galaxies. Spiral. Galaxies. Elliptical. Variable Stars. Stellar Evolution. H-R Diagram. Spectral Types.

384 views • 19 slides

Announcements

Announcements. Vega. Comet SWAN!. West. Classifying the Stars. 27 October 2006. Today :. Stellar spectra: temperatures and compositions Are hotter stars brighter? (H-R diagrams) Determining sizes of stars Classifying stars, looking for patterns. Stellar Spectra. Pleiades Spectra.

357 views • 18 slides

The Stellar Populations of Galaxies H.-W. Rix IMPRS Galaxies Course March 11, 2011

The Stellar Populations of Galaxies H.-W. Rix IMPRS Galaxies Course March 11, 2011. Goal: Determine n * (M * , t age ,[Fe /H], R ) for a population of galaxies How many stars of what mass and metallicity formed when and where in galaxies? In particular:

370 views • 18 slides

The Spitzer IRS Spectrophotometric Database

The Spitzer IRS Spectrophotometric Database. Patrick Ogle, Lee Armus , Bob Narron , Carl Grillmair , Justin Howell, IRS IST. Integrating Spitzer IRS Archival data into IRSA and NED. Tap into the power of IPAC database search tools Enable multi-wavelength science

329 views • 18 slides

ASTR 8000 STELLAR ATMOSPHERES AND SPECTROSCOPY

ASTR 8000 STELLAR ATMOSPHERES AND SPECTROSCOPY. Introduction & Syllabus Light and Matter Sample Atmosphere. Introductions and Syllabus. Available on-line at class web site http://www.astro.gsu.edu/~gies/ASTR8000/

371 views • 17 slides

AS1001:Extra-Galactic Astronomy

AS1001:Extra-Galactic Astronomy. Lecture 2: Galaxy Morphology Kenneth Wood 316 kw25@st-andrews.ac.uk http://www-star.st-and.ac.uk/~kw25. Galaxy Morphology. Hubble Tuning Fork: 1929 Originally covered Ellipticals to Spirals. The Hubble Tuning Fork. Objects classified from Early-to-Late

169 views • 16 slides

How interstellar matter is detected 8.1.1 Absorption of starlight

How interstellar matter is detected 8.1.1 Absorption of starlight. Byeon Jae Gyu. The Interstellar Media of Galaxies. The space between star Rarefied gas, dust particles, a magnetic field Relativistically moving electrons, protons and other atomic nuclei

198 views • 7 slides

Characterising Hot Subdwarfs from

99 views • 1 slides

Stellar populations and their kinematics from high and medium resolution spectra: mixed inversions

147 views • 1 slides

The Life of Stars and their Spectra

The Life of Stars and their Spectra. SpectrJ.

85 views • 1 slides