'Hii regions' presentation slideshows

The Milky Way and Beyond

1.02k views • 66 slides

The Milky Way

1.09k views • 59 slides

Star formation

Star formation. Suzanne Ramsay UK Astronomy Technology Centre, Royal Observatory Edinburgh. UKIRT+WFCAM infrared image of Orion. The Challenge. A theory of star formation requires to explain the origins of stars over four orders of magnitude in mass

719 views • 51 slides

Only on the largest cosmological scales is astronomy simple!

600 views • 47 slides

Pop III IMF

529 views • 39 slides

Deriving the Physical Structure of High-mass Star Forming Regions

Deriving the Physical Structure of High-mass Star Forming Regions. Yancy L. Shirley. Collaborators: Neal Evans, Kaisa Young, Dan Jaffe, Claudia Knez, & Jingwen Wu. May 2003. SF in the Milky Way. 10 11 stars in the Milky Way Evidence for SF throughout history of the galaxy (Gilmore 2001)

476 views • 39 slides

Ionized gas in massive star forming regions Guido Garay Universidad de Chile

Ionized gas in massive star forming regions Guido Garay Universidad de Chile. Great Barriers in High-Mass Star Formation. Townsville, September 15, 2010. Aim. Review the characteristics of sources of ionized gas within massive star forming regions.

501 views • 38 slides

The Interstellar Medium and Interstellar Molecules

The Interstellar Medium and Interstellar Molecules. Ronald Maddalena National Radio Astronomy Observatory. Interstellar Medium The Material Between the Stars. Constituents: Gases: Hydrogen (92% by number) Helium (8%) Oxygen, Carbon, etc. (0.1%) Dust Particles 1% of the mass of the ISM

821 views • 34 slides

Madau Plotting for Beginners

Theoretical Pan-Spectral Energy Distributions of Starburst Galaxies Mike Dopita with assistance from: Massimo Capaccioli, Joerg Fischera, Brent Groves, Lisa Kewley, Claus Leitherer, Cristina Popescu, Maria Pereira, Ralph Sutherland & Richard Tuffs IoA Cambridge, 7 September 2004.

527 views • 34 slides

341 views • 20 slides

Nanyao Lu (IPAC/SSC/Caltech)

Global Relation between Aromatic Features in Emission (AFEs) and Star Formation in Galaxies ( Does the Former Trace the Latter?). Nanyao Lu (IPAC/SSC/Caltech). AFEs (or PAH Emission features) Nearly Ubiquitous in Disk Galaxies. (Lu et al. 2003). Average spectrum for spiral galaxies.

310 views • 18 slides

The Milky Way

The Milky Way Structure of the Milky Way The Milky Way Components of the Milky Way Disk Population I stars Open clusters HII regions Bulge Population II stars Halo Globular clusters Omega Centauri Stellar Populations M100 Finding Our Place Globular Clusters evenly distributed

739 views • 16 slides

GBT radio recombination lines (GBT-5)

GBT radio recombination lines (GBT-5). Single Dish Summer School July 2009. Project Team. Advisor: Toney Minter (NRAO, Green Bank) Project Team: Daniel Angles-Alcazar ( Univ. of Puerto Rico) Joseph Richards (Caltech) Marty Bloss (NRAO, Green Bank). Project Description.

316 views • 16 slides

Tal Kopler and Matan Markovich Tshernihovski School, Netanya, Israel .

881 views • 14 slides

Star Formation Rates in Galaxies

Star Formation Rates in Galaxies. Investigations into Color Dependence Ben Willett U.W.-Madison. Project Goals. Find the star forming regions in the galaxies from our sample via location of HII regions. From these HII regions, gauge the amount of star formation.

330 views • 13 slides

AT20G compact HII region Survey: Spitzer character of the sources in the MIR

252 views • 13 slides

Radio Recombination Line Observations of HII Regions with ALMA & the EVLA

Radio Recombination Line Observations of HII Regions with ALMA & the EVLA. Stan Kurtz Center for Radioastronomy & Astrophysics National Autonomous University of Mexico. What is an HII Region, anyway?. Objectives and challenges depend on the class of region. Why observe RRLs at all?.

234 views • 10 slides

M101 Group

M101 Group. Dave Riebel & Justice Bruursema 12 Februrary 2007. Basic Info. Located in the Ursa Major constellation Part of the Virgo supercluster Brightest member, M101 is the pinwheel galaxy Main members consist of about 5-8 companion galaxies as defined by NGC Fouque et al. survey

409 views • 10 slides

The Survey for Ionized Gas in the Galaxy, Made with Arecibo

146 views • 7 slides

Can we observe several HII regions at once ?

98 views • 2 slides