File:Mean optical spectrum of M33 X-7 (geminiann07018c).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Mean_optical_spectrum_of_M33_X-7_(geminiann07018c).jpg ‎(500 × 398 pixels, file size: 52 KB, MIME type: image/jpeg)

Captions

Captions

Mean optical spectrum of M33 X-7. The spectrum shown here (connected dots), which was extracted with the SPECRES package in IRAF22, is the sum of the 22 individual spectra that have been velocity-shifted to the rest frame of the secondary star.

Summary[edit]

Description
English: Mean optical spectrum of M33 X-7. The spectrum shown here (connected dots), which was extracted with the SPECRES package in IRAF22, is the sum of the 22 individual spectra that have been velocity-shifted to the rest frame of the secondary star. The solid line is the model spectrum described in the paper. The data were obtained using GMOS on the Gemini North. Twenty-four 40-minute spectra were acquired in service mode between 2006 August 18 and November 16 in good seeing of always < 0.8 arcseconds. In the two-dimensional spectra, the overlap of the profiles of M33 X-7 and the nearby pair of stars was modest.
Date 17 October 2007, 19:56:00 (upload date)
Source Mean optical spectrum of M33 X-7
Author International Gemini Observatory/NOIRLab/NSF/AURA
Other versions
  • TIFF version
    TIFF version

Licensing[edit]
This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current23:03, 23 October 2023Thumbnail for version as of 23:03, 23 October 2023500 × 398 (52 KB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/geminiann07018c.jpg via Commons:Spacemedia

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Mean_optical_spectrum_of_M33_X-7_(geminiann07018c).jpg&oldid=816294490"