Spectroscopic Analysis of the IR-Visible Galactic Core

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Discussion Overview

The discussion centers on the spectroscopic analysis of the massive object at the center of the Milky Way galaxy, particularly focusing on its infrared emissions. Participants explore the visibility of this object in various wavelengths and inquire about the status of infrared spectroscopy efforts related to it.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant notes that the central object is visible in radio waves and X-rays but not in visible light, and mentions recent infrared imaging.
  • Another participant requests clarification on which specific object in the Galactic center is being discussed, suggesting Sgr A* as a potential focus.
  • A participant provides links to articles that detail observations of the Milky Way center, indicating a wealth of information available on the topic.
  • There is a mention that spectroscopy in the infrared band has not been conducted on the signals from Sgr A*, raising a question about the current state of research.
  • A later reply references specific academic papers that report attempts to find spectral lines during infrared flares from Sgr A*, indicating that such observations are contingent on the brightness of the flares.

Areas of Agreement / Disagreement

Participants express uncertainty about the existence of infrared spectroscopy data for Sgr A*. While some acknowledge the lack of such studies, others point to relevant literature that suggests attempts have been made but with limited success.

Contextual Notes

The discussion reflects limitations in the current understanding of infrared spectroscopy related to Sgr A*, particularly regarding the conditions under which observations can be made and the challenges in detecting spectral lines.

Who May Find This Useful

Researchers and enthusiasts interested in astrophysics, particularly those focused on galactic centers, black hole studies, and infrared astronomy.

psholtz
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I understand that the massive object at the center of the galaxy is visible in both radio waves and X-rays, although not in visible light.

I also understand that an image has recently been taken of this object in the infrared wavelengths.

Have there been any attempts to do spectroscopy on this object in the IR band?
 
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There's lots of different things in the Galactic centre so be a bit more specific.
 
qraal said:
There's lots of different things in the Galactic centre so be a bit more specific.
I have in mind Sgr A*, the compact, extremely massive object at the center of the galaxy emitting X-rays and radio waves and which some astronomers believe might be a "black hole"..
 
granpa said:
http://Earth'sky.org/space/most-detailed-view-yet-of-milky-way-center

http://www.mpi-hd.mpg.de/hfm/HESS/pages/home/som/2009/12/
Thanks, the second article in particular is informative..

Still, I don't think anyone has done spectroscopy on the IR signals coming from this source, have they?
 
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