File:MWC 349 A.jpg

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

Original file ‎(7,200 × 5,400 pixels, file size: 10.8 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: Like lasers in visible light, masers are amplified electromagnetic waves in the microwave wavelengths. We use masers generated by hydrogen to probe the physical and dynamic structures in the gas surrounding star MWC 349A, which is about 30 times the mass of the Sun. Analysis of observations with the Atacama Millimeter/submillimeter Array revealed a flattened gas disk with a diameter of 50 au, approximately the size of the solar system, and a wind moving away from the star at a speed of 500 km/s, possibly launched by the magnetic force.
Date
Source https://public.nrao.edu/news/hydrogen-masers-reveal-jet-alma/
Author ALMA (ESO/NAOJ/NRAO), M. Weiss (NRAO/AUI/NSF)

Licensing[edit]

w:en:Creative Commons
attribution
attribution
 All images and videos released by NRAO on their website are copyright protected on behalf of the National Radio Astronomy Observatory (NRAO), Associated Universities, Inc. (AUI), and the National Science Foundation (NSF), and are licensed for use under the Creative Commons Attribution 3.0 Unported license (https://creativecommons.org/licenses/by/3.0/) in accordance with the conditions below. See the NRAO Image Use Policy for complete information.

Conditions:

  • The image or video credit, as given on the NRAO website, must be clearly visible as the source of the image material.
  • If an image credit names persons affiliated with other institutions, it is possible that the person(s) or their institution(s) could assert ownership of the image; the user should contact the named institution(s) to secure permission. If an individual listed in the credit line is a member of the American Astronomical Society, his/her contact information can be obtained from (https://aas.org/directory).
  • NRAO materials, images and videos may not be used to state or imply the endorsement by NRAO or any NRAO employee of a product or service without express written permission from NRAO.
  • NRAO/AUI/NSF disclaim any and all liability arising from the use of NRAO images or video. The user shall hold NRAO harmless against any and all such claims.
  • If an image or video includes an identifiable person, reproducing that image or video may infringe that person's right of privacy; the user should obtain separate permission from the individual.
  • Narrated videos (as opposed to b-roll footage or animation clips, which the NRAO offers for the express purpose of incorporation into new creative works) may be reproduced only in their entirety, and may not be embedded within other video productions, unless express written permission from NRAO is obtained to allow such use; such permission if granted by NRAO may require the user to secure additional permissions from third parties.
  • Voiceover narration, music contained within a narrated video, or video of an on-camera program host (e.g., "talent") may not be excerpted or re-used in any way other than in the reproduction of the complete video without express written permission from NRAO, which permission may require the user to secure additional permissions from third parties.
  • Broadcast or public/theatrical performance of any narrated video on this site is prohibited without express written permission from NRAO.

Notes:

  • These provisions do not extend to use of the NRAO logo, which may not be used or reproduced without prior and individual written consent of NRAO.
  • By reproducing, distributing, broadcasting or otherwise using NRAO images and videos, either in part or in full, the user acknowledges and agrees to abide by the above terms.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 3.0 Unported 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.
w:en:Creative Commons
attribution
attribution
This image was produced by the ALMA Observatory.
Unless specifically noted, the images and videos distributed from the public ALMA websites (www.almaobservatory.org, www.alma.cl, and kids.alma.cl) along with the texts of press releases, announcements, pictures 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. Details on how to interpret this are given below for those who need further explanation. See the ALMA copyright notice for complete information.

Conditions:

  • If you want to use our materials without having to pay, the full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "Ralph Bennett – ALMA (ESO/NAOJ/NRAO)". The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the copyright Q&A section on this page for guidance.
  • The text of press releases, announcements, pictures of the week and captions should be credited to ALMA, except when used by media.
  • ALMA materials, images and videos may not be used to state or imply the endorsement by ALMA or any ALMA employee, or ALMA partner (ESO, NRAO, or NAOJ) of a commercial product or service.
  • We welcome a copy of the product sent to us to be indexed in our archive. Please send it to copyright@alma.cl.
  • If an image includes a picture of an identifiable person, using that image for commercial purposes is not permitted.

Notes:

  • Note that this general permission does not extend to the use of ALMA's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ALMA. Owners of external websites wishing to link to the ALMA web site may use ALMA's logo for the link, provided they have obtained prior authorization from the ALMA Education and Public Outreach Department and on the condition that such use is clearly identifiable as a web link.
  • Also note that music, scientific papers, code, and text other than press releases, announcements, pictures of the week and captions on this site are not released under the Creative Commons Attribution 4.0 International License and cannot be used for non-ALMA products.
  • By reproducing ALMA material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ALMA
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
current18:23, 26 September 2023Thumbnail for version as of 18:23, 26 September 20237,200 × 5,400 (10.8 MB)Юрий Д.К. (talk | contribs)Uploaded a work by ALMA (ESO/NAOJ/NRAO), M. Weiss (NRAO/AUI/NSF) from https://public.nrao.edu/news/hydrogen-masers-reveal-jet-alma/ with UploadWizard

You cannot overwrite this file.

There are no pages that use 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:MWC_349_A.jpg&oldid=805298242"