1 / 14

October, 1970

H 2 S 2. March 28-31, 1966, APS Durham, NC. April 22, 1966, Invitation to give a seminar. October, 1970. Scrutiny of the Central Parsec of the Galactic Center by Infrared Spectra of H 3 + and 13 CO: GCIRS 3 and GCIRS 1W. Miwa Goto, Max-Planck-Institute for Astronomy, Heidelberg

nash
Download Presentation

October, 1970

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. H2S2 March 28-31, 1966, APS Durham, NC April 22, 1966, Invitation to give a seminar October, 1970

  2. Scrutiny of the Central Parsec of the Galactic Center by Infrared Spectra of H3+ and 13CO: GCIRS 3 and GCIRS 1W Miwa Goto, Max-Planck-Institute for Astronomy, Heidelberg Tomonori Usuda, Subaru Telescope, Hilo Thomas R. Geballe, Gemini Observatory, Hilo Farhad Yusef-Zadeh, Northwestern University, Evanston Nick Indriolo, and Ben J. McCall, University of Illinois at Urbana-Champaign, Urbana Takeshi Oka, University of Chicago, Chicago Harvey Liszt, National Radio Astronomy Observatory 66th OSU International Symposium, June 21, 2011

  3. T ~ 250 K n < 100 cm-3 L > 2.2  105 cm/s  = 2  10-15 s-1 L > 35pc GCS 3-2 Oka, Geballe, Goto, Usuda, McCall, 2005, ApJ, 632, 882 ,  Geballe, Oka, 2010, ApJ, 709, L70 ε+ ε- η+ λ α+ θ+ θ- δ+ Goto, Usuda, Nagata, Geballe, McCall, Indriolo, Suto, Henning, Morong, Oka, 2008, ApJ, 688, 306 30 pc

  4. Molecular face-on view of the GC R ~ 180 pc 101 pc 130 pc Reid, Menten, Zheng, Brunthaler, Xu, ApJ, 2009 The Expanding Molecular Ring T. Sawada et al. 2001 T. Sawada et al. 2004 N. Z. Scoville, 1972

  5. J. Kormendy & R. C. Kennicutt, 2004, ARA&A, 42, 603

  6. The Central Cluster 8.4” 0.33 pc The ISAAC L-band image of the Galactic center showing most of the named sources (from Viehmann et al. 2005)

  7. H3+ and 13CO spectra toward GCIRS 3 and GCIRS 1W Warm and diffuse gas (3,3) (2,2) 361 K 27 days (1,1)

  8. H3+ and 13CO spectra toward GCIRS 3 and GCIRS 1W Velocity profiles and radial location of gas  140 km s-1 Subtract spiral arms Expanding Mol. Ring Inner Molecular gas

  9. Dense cloud near Sgr A* toward GCIRS 3 N(1,1) = 1.89 ± 0.31 cm-2 N(2,2) = 2.05 ± 0.57 cm-2 N(3,3) = 2.78 ± 0.30 cm-2 T ~ 300 K

  10. Ionization rate L = 2 keN(H3+) (nC/nH)SV RX / f(H2) 1.8 ×10-9 cm3/s 1.6 ×10-4 1 L = 2 kLN(H3+) (nC/nH)SV RX / f(H2) 1.0 ×1015 cm-2 3 ~ 1700 cm s-1 if L = 0.5 pc, = 1.1  10-15 s-1

  11. Ubiquity of H3+ Sgr A* to 30 pc East Goto, et al. 2008, ApJ, 688, 306 30 pc

More Related