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.

Telif:

ESO

Görüntü Hakkında

Kimlik:potw1838a
Tür:Gözlem
Yayın tarihi:17 Eylül 2018 06:00
Boyut:5773 x 3995 px

Nesne Hakkında

Adı:Phoenix Dwarf
Tür:Local Universe : Galaxy : Size : Dwarf
Constellation:Phoenix
Kategori:Galaxies

Görüntü Türleri

Büyük JPEG
9,1 MB
Baskı JPEG
4,8 MB

Yaklaştırma


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369,7 KB
1280x1024
622,7 KB
1600x1200
908,5 KB
1920x1200
1,1 MB
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1,5 MB

Koordinatlar

Position (RA):1 51 6.35
Position (Dec):-44° 26' 32.60"
Field of view:12.14 x 8.40 arcminutes
Yönelim:Kuzey yönü 90.1° sağ derece kadar dik konumdan sapma göstermektedir

Renkler & Filtreler

BantDalgaboyuTeleskop
Optik
B
440 nmVery Large Telescope
FORS2
Optik
V
557 nmVery Large Telescope
FORS2