molecular clouds towards rcw49 and westerlund 2
Download
Skip this Video
Download Presentation
Molecular Clouds Towards RCW49 and Westerlund 2

Loading in 2 Seconds...

play fullscreen
1 / 14

Molecular Clouds Towards RCW49 and Westerlund 2 - PowerPoint PPT Presentation


  • 71 Views
  • Uploaded on

Molecular Clouds Towards RCW49 and Westerlund 2. Dame 2007 ApJ, 665, L163 Povich et al. 2008 ApJ, 689, 242 Furukawa et al. arXiv:0904.0286 Fukui et al. arXiv:0903.5340 & references therein. RCW49:[284.3,-0.3], HII complex D~2.3-8 kpc, 90’*70’ & 12’ core Excited by the Westerlund 2 cluster

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Molecular Clouds Towards RCW49 and Westerlund 2' - aradia


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
molecular clouds towards rcw49 and westerlund 2

Molecular Clouds Towards RCW49 and Westerlund 2

Dame 2007 ApJ, 665, L163

Povich et al. 2008 ApJ, 689, 242

Furukawa et al. arXiv:0904.0286

Fukui et al. arXiv:0903.5340

& references therein

slide2
RCW49:[284.3,-0.3], HII complex
  • D~2.3-8 kpc, 90’*70’ & 12’ core
  • Excited by the Westerlund 2 cluster
  • Stars + Optical nebulosity + Diffuse emission
  • A wind-blown shell resulting from W2 cluster

843 MHz by the Molonglo Observatory Synthesis Telescope

43’’

25’’

slide5
Westerlund 2:[284.27,-0.33], tight open cluster
  • 1-3 Myr, 5E3 Msun, E~3.6E51 erg
  • The core of the HII region RCW49

2MASS J,H, &K

Intense SFR: numerous Pre Main Sequence objects + many early-type stars

slide6

138 ks

0.1-1 keV

1.-2. keV

2-10 keV

slide7

HESS TeV + MOST Radio

Triangle= WR star (82+83 Msun, ~3.7d)

Dotted blister= wind bubble of WR star

slide8

1E3 cm-3

10-100km/s

slide9
Dame 2007: 12CO(1-0), 12’@115GHz

0-20 km/s 11km/s d~6kpc,M~7E4 Msun

slide10
Furukawa et al. 2009: 12CO(2-1) 1.5’@230GHz

6 km/s d~5.4 kpc, M~2E5 Msun, E~1E50 erg

slide11
Fukui et al. 2009: 12CO(1-0) 3’@115GHz

24-28 km/s crescent arc; 28-30 km/s jet

slide13

100 * 10 pc

J1:8E3 Msun

J2:2E4 Msun

J3:3E3 Msun

J4:1E3 Msun

E~2E48 ergs

Anisotropic SNe: Cas A

Accretion-powered jet: SS433

summary
Summary
  • Dust in a complex network coexists with ionized gas and some material has been sculpted by winds and radiation;
  • The distance to the cluster and HII region is about 5.4-6 kpc;
  • A spectacular jet and arc of molecular gas toward the extended TeV source are discovered. The arc is probably from the result of a powerful supernova explosion and the jet from a long-lived microquasar jet.
ad