1 / 39

OB Spectral and Spatial Morphology from Carina to the Antennae

OB Spectral and Spatial Morphology from Carina to the Antennae. Nolan R. Walborn Space Telescope Science Institute HotSci STScI August 17, 2011. Walborn Diagram. Optical O Main Sequence N IV/III He II/I. UV O Main Sequence (No Si IV). UV OB Main Sequence (No Si IV). Optical

elsie
Download Presentation

OB Spectral and Spatial Morphology from Carina to the Antennae

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OB Spectral and Spatial Morphologyfrom Carina to the Antennae Nolan R. Walborn Space Telescope Science Institute HotSci STScI August 17, 2011

  2. Walborn Diagram

  3. Optical O Main Sequence N IV/III He II/I

  4. UV O Main Sequence(No Si IV)

  5. UV OB Main Sequence(No Si IV)

  6. Optical Early O Supergiant Sequence N IV/III

  7. Optical OB Supergiant Sequence Si IV/III/II

  8. UV O Supergiant Sequence Si IV!

  9. UV B Supergiant Sequence Si IV!

  10. FUV O Supergiant Sequence(O VI, C III)

  11. Optical O Luminosity Sequence(He II λ4686, N III λ4640)

  12. UV O Luminosity Sequence(Si IV! 45 eV)

  13. FUV O Luminosity Sequence(S IV 47 eV, C III 48 eV, P V 65 eV but low abundance!)

  14. X-Ray OB Supergiant Sequence Si XIV/XIII Mg XII/XI Ne X/IX O VIII/VII

  15. X-Ray OB Main Sequence Si XIV/XIII Mg XII/XI Ne X/IX O VIII/VII

  16. New Of?p Stars GOSSS J. Maiz Apellaniz et al. ApJS 193, 24 (2011)

  17. Ofc Spectra GOSSS

  18. ONn Spectra GOSSS

  19. VFTS C. Evans et al., A&A 530, A108 (2011) All Single O Stars

  20. Vz Stars

  21. J. Maiz Apellaniz in prep.

  22. Vn/nn/nnn Stars (red)

  23. H. Sana

  24. VISTA Blue J Spitzer Green 4.5 Red 8 micron R. Barba et al in prep.

  25. N11 LMC

  26. NGC5471M101

  27. Region G B. Whitmore et al. (2010) Region G has only a single dominant central cluster (brightest in the Antennae), but again shows evidence for some weak triggering. The mass in the intermediate age clusters is only about 5 % of the mass of the central cluster, hence the triggered star formation is a relatively minor effect. Note the beautiful H_alpha shells, which have expanded unimpeded to the left, but have run into material and appear to have formed clusters in other directions

  28. Region B We find a smooth gradient in the ages! In addition, the supershell is centered on the old cluster, and the young clusters are located where the shell intersects the dust lane ! The young clusters have a total mass of 4 E6 Msolar, 5 times more than the cluster that appears to have triggered their formation. Triggering is not always weak !

  29. Antennae Spitzer HST/ACS

  30. 4-5 Myr 7-9 Myr G 1-2 Myr S <1 Myr 3-4 Myr B

More Related