Delicate bubble of expelled material around the cool red star U Antliae

Eso_eso1730a_500

eso_eso1730a September 20th, 2017

Credit: ALMA (ESO/NAOJ/NRAO)/F. Kerschbaum

This ALMA image reveals much finer structure in the U Antliae shell than has previously been possible. Around 2700 years ago, U Antliae went through a short period of rapid mass loss. During this period of only a few hundred years, the material making up the shell seen in the new ALMA data was ejected at high speed. Examination of this shell in further detail also shows some evidence of thin, wispy clouds known as filamentary substructures.

Image Source: https://www.eso.org/public/images/eso1730a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
U Antliae
Subject - Milky Way
Star » Type » Variable
Eso_eso1730a_128
 

Position Details

Position (ICRS)
RA = 10h 35m 12.9s
DEC = -39° 33’ 45.0”
Orientation
North is 0.5° CW
Field of View
2.2 x 2.2 arcminutes
Constellation
Antlia

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_orange Atacama Large Millimeter/submillimeter Array (Band 6) Millimeter (230 GHz) 1.3 mm
Spectrum_ir1
Arrow_top_orange
Eso_eso1730a_1280
×
ID
eso1730a
Subject Category
B.3.2.1  
Subject Name
U Antliae
Credits
ALMA (ESO/NAOJ/NRAO)/F. Kerschbaum
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso1730a/
Type
Observation
Image Quality
Distance Notes
Facility
Atacama Large Millimeter/submillimeter Array
Instrument
Band 6
Color Assignment
Orange
Band
Millimeter
Bandpass
230 GHz
Central Wavelength
1300000
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
158.803628909, -39.5624980714
Reference Dimension
2000.0, 2000.0
Reference Pixel
1000.0, 1000.0
Scale
-1.8162798889e-05, 1.8162798889e-05
Rotation
-0.51999999999982571
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso1730a
Metadata Date
2017-09-20T14:47:10.501795
Metadata Version
1.1
×

Detailed color mapping information coming soon...

 

×

There is no distance meta data in this image.