Haro 11
| ||
 Galaktyka Haro 11 (ESO) | ||
| Odkrywca | Guillermo Haro | |
|---|---|---|
| Data odkrycia | 1956 | |
| Dane obserwacyjne (J2000) | ||
| Gwiazdozbiór | Rzeźbiarz | |
| Typ | nieregularna | |
| Rektascensja | 00h 36m 52,489s | |
| Deklinacja | −33° 33′ 17,23″ | |
| Odległość | 300 milionów ly | |
| Przesunięcie ku czerwieni | 0,020558 | |
| Jasność obserwowana | 14,41m | |
| Alternatywne oznaczenia | ||
| PGC 2204, ESO 350-38, AM 0034-334 | ||
Haro 11 (również PGC 2204 lub ESO 350-38) – galaktyka nieregularna, znajdująca się w gwiazdozbiorze Rzeźbiarza w odległości 300 milionów lat świetlnych. Została odkryta w 1956 roku przez meksykańskiego astronoma Guillermo Haro.
Galaktyka Haro 11 jest galaktyką gwiazdotwórczą. Obserwacje tej galaktyki prowadzą do wniosku, że powstała ona w wyniku zderzenia dwóch galaktyk, z których starsza była bogata w gwiazdy, a młodsza była bogata w gaz. Haro 11 formuje gwiazdy w wyjątkowo dużym tempie około 20 mas Słońca konwersji gazu w gwiazdy rocznie. Haro 11 jest jedną z najbliższych galaktyk tego typu.
Bibliografia
- Frenzied Star Birth in Haro 11 (ang.). ESO, 2010-08-09. [dostęp 2014-04-01].
- Haro 11 w bazie SIMBAD (ang.)
Media użyte na tej stronie
Frenzied Star Birth in Haro 11.jpg
Autor: ESO/ESA/Hubble and NASA, Licencja: CC BY 3.0
Haro 11 appears to shine gently amid clouds of gas and dust, but this placid facade belies the monumental rate of star formation occurring in this “starburst” galaxy. By combining data from ESO’s Very Large Telescope and the NASA/ESA Hubble Space Telescope, astronomers have created a new image of this incredibly bright and distant galaxy. The team of astronomers from Stockholm University, Sweden, and the Geneva Observatory, Switzerland, have identified 200 separate clusters of very young, massive stars. Most of these are less than 10 million years old. Many of the clusters are so bright in infrared light that astronomers suspect that the stars are still emerging from the cloudy cocoons where they were born. The observations have led the astronomers to conclude that Haro 11 is most likely the result of a merger between a galaxy rich in stars and a younger, gas-rich galaxy. Haro 11 is found to produce stars at a frantic rate, converting about 20 solar masses of gas into stars every year. Haro galaxies, first discovered by the noted astronomer Guillermo Haro in 1956, are defined by unusually intense blue and violet light. Usually this high energy radiation comes from the presence of many newborn stars or an active galactic nucleus. Haro 11 is about 300 million light-years away and is the second closest of such starburst galaxies.
Autor: ESO/ESA/Hubble and NASA, Licencja: CC BY 3.0
Haro 11 appears to shine gently amid clouds of gas and dust, but this placid facade belies the monumental rate of star formation occurring in this “starburst” galaxy. By combining data from ESO’s Very Large Telescope and the NASA/ESA Hubble Space Telescope, astronomers have created a new image of this incredibly bright and distant galaxy. The team of astronomers from Stockholm University, Sweden, and the Geneva Observatory, Switzerland, have identified 200 separate clusters of very young, massive stars. Most of these are less than 10 million years old. Many of the clusters are so bright in infrared light that astronomers suspect that the stars are still emerging from the cloudy cocoons where they were born. The observations have led the astronomers to conclude that Haro 11 is most likely the result of a merger between a galaxy rich in stars and a younger, gas-rich galaxy. Haro 11 is found to produce stars at a frantic rate, converting about 20 solar masses of gas into stars every year. Haro galaxies, first discovered by the noted astronomer Guillermo Haro in 1956, are defined by unusually intense blue and violet light. Usually this high energy radiation comes from the presence of many newborn stars or an active galactic nucleus. Haro 11 is about 300 million light-years away and is the second closest of such starburst galaxies.