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.

Źródło:

ESO

O zdjęciu

Identyfikator:potw1838a
Typ:Obserwacje
Data publikacji:17 września 2018 06:00
Rozmiar:5773 x 3995 px

O obiekcie

Nazwa:Phoenix Dwarf
Typ:Local Universe : Galaxy : Size : Dwarf
Constellation:Phoenix
Kategoria:Galaxies

Formaty zdjęć

Pełen rozmiar
51,4 MB
Wielki JPEG
9,1 MB
JPEG do druku
4,8 MB

Powiększenie


Tapety

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

Współrzędne

Pozycja (RA):1 51 6.35
Pozycja (Dec):-44° 26' 32.60"
Pole widzenia:12.14 x 8.40 arcminutes
Orientacja:North is 90.1° prawo of vertical

Kolory i filtry

PasmoDługość faliTeleskop
Optyczny
B
440 nmVery Large Telescope
FORS2
Optyczny
V
557 nmVery Large Telescope
FORS2

 

Zobacz też