A peculiar proceeding

Esahubble_potw2338a_1024

esahubble_potw2338a September 18th, 2023

Credit: ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/NOIRLab/NSF/AURA, SDSS 

This Hubble Picture of the Week — taken using the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys (ACS) — shows Arp 107, a celestial object that comprises a pair of galaxies in the midst of a collision. The larger galaxy (on the left of this image) is an extremely energetic galaxy of a type known as a Seyfert galaxy, which house active galactic nuclei at their cores. Seyfert galaxies are notable because, despite the immense brightness of the active core, radiation from the entire galaxy can be observed. This is evident in this image, where the spiraling whorls of the whole galaxy are readily visible. The smaller companion is connected to the larger by a seemingly tenuous ‘bridge’, composed of dust and gas. The colliding galactic duo lies about 465 million light-years from Earth.  Arp 107 is included in a catalogue of 338 galaxies known as the Atlas of Peculiar Galaxies, which was compiled in 1966 by Halton Arp. It was observed by Hubble as part of an observing programme that specifically sought to fill in an observational ‘gap’, by taking limited observations of members of the Arp catalogue. Part of the intention of the observing programme was to provide the public with images of these spectacular and not-easily-defined galaxies, and it has provided a rich source for Hubble Pictures of the Week. In fact, several recent releases, including this one and this one, have made use of observations from the same observing programme.  [Image Description: A pair of merging galaxies. The galaxy on the left has a single, large spiral arm curving out from the core and around to below it, with very visible glowing dust and gas. The right-hand galaxy has a bright core but only a bit of very faint material. A broad curtain of gas connects the two galaxies’ cores and hangs beneath them. A few small stars and galaxies are scattered around the black background.] Links Pan: A peculiar proceeding

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2338a/

Curator: ESA/Hubble, Baltimore, MD, United States

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Arp 107
Esahubble_potw2338a_128
 

Position Details

Position (ICRS)
RA = 10h 52m 16.8s
DEC = 30° 4’ 0.3”
Orientation
North is 128.1° CW
Field of View
3.0 x 2.9 arcminutes
Constellation
Leo Minor

Color Mapping

  Telescope Spectral Band Wavelength
Purple SDSS (None) Optical (u) 354.0 nm
Blue SDSS (None) Optical (G) 477.0 nm
Blue Blanco-4m (DECam) Optical (G) 474.0 nm
Green SDSS (None) Optical (R) 623.0 nm
Green Blanco-4m (DECam) Optical (R) 644.0 nm
Yellow SDSS (None) Optical (I) 762.0 nm
Red SDSS (None) Optical (Z) 913.0 nm
Red Blanco-4m (DECam) Optical (Z) 919.0 nm
Luminosity Hubble (ACS) Optical (V) 606.0 nm
Spectrum_base
Purple
Blue
Blue
Green
Green
Yellow
Red
Red
Luminosity
Esahubble_potw2338a_1280
×
ID
potw2338a
Subject Category
Subject Name
Arp 107
Credits
ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/NOIRLab/NSF/AURA, SDSS 
Release Date
2023-09-18T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2338a/
Type
Observation
Image Quality
Distance Notes
Facility
SDSS, SDSS, Víctor M. Blanco 4-meter Telescope, SDSS, Víctor M. Blanco 4-meter Telescope, SDSS, SDSS, Víctor M. Blanco 4-meter Telescope, Hubble Space Telescope
Instrument
None, None, DECam, None, DECam, None, None, DECam, ACS
Color Assignment
Purple, Blue, Blue, Green, Green, Yellow, Red, Red, Luminosity
Band
Optical, Optical, Optical, Optical, Optical, Optical, Optical, Optical, Optical
Bandpass
u, G, G, R, R, I, Z, Z, V
Central Wavelength
354, 477, 474, 623, 644, 762, 913, 919, 606
Start Time
Integration Time
Dataset ID
None, None, None, None, None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
163.07007828982915, 30.066741587661312
Reference Dimension
3571.0, 3451.0
Reference Pixel
1785.5, 1725.5
Scale
-1.388040104278824e-05, 1.388040104278824e-05
Rotation
-128.13999999999947
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
https://esahubble.org
Name
Email
Telephone
Address
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr
City
Baltimore
State/Province
MD
Postal Code
21218
Country
United States
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2338a
Metadata Date
2023-12-12T14:21:28.765749
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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