An explosive phoenix

This image shows a dwarf galaxy in the southern constellation of Phoenix named, for obvious reasons, the Phoenix Dwarf.

The Phoenix Dwarf is unique in that it cannot be classified according to the usual scheme for dwarf galaxies; while its shape would label it as a spheroidal dwarf galaxy — which do not contain enough gas to form new stars — studies have shown the galaxy to have an associated cloud of gas nearby, hinting at recent star formation, and a population of young stars.

The gas cloud does not lie within the galaxy itself, but is still gravitationally bound to it — meaning that it will eventually fall back into the galaxy over time. Since the cloud is close by, it’s likely that the process that flung it outwards it is still ongoing. After studying the shape of the gas cloud, astronomers suspect the most likely cause of the ejection to be supernova explosions within the galaxy.

The data to create this image was selected from the ESO archive as part of the Hidden Treasure competition.

Të drejtat:

ESO

Rreth fotografisë

Id:potw1838a
Tipi:Vëzhgim
Data e Publikimit:Sht 17, 2018, 06:00 CEST
Përmasat:5773 x 3995 px

Rreth objektit

Emri:Phoenix Dwarf
Tipi:Local Universe : Galaxy : Size : Dwarf
Constellation:Phoenix
Kategori:Galaxies

Formate Fotografish

JPEG i madh
9,1 MB
Publikim JPEG
4,8 MB

E zmadhueshme


Wallpaper

1024x768
369,7 KB
1280x1024
622,7 KB
1600x1200
908,5 KB
1920x1200
1,1 MB
2048x1536
1,5 MB

Koordinatat

Position (RA):1 51 6.35
Position (Dec):-44° 26' 32.60"
Field of view:12.14 x 8.40 arcminutes
Orientimi:Veriu është 90.1° djathtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
B
440 nmVery Large Telescope
FORS2
Optik
V
557 nmVery Large Telescope
FORS2

 

Shih dhe