Berkeley 87
Cyg OB2
Cygnus OB2
DG Tauri
Eagle Nebula
HR 6000
L1551
M16
M42
NGC 6383
NGC346
NGC6888
OMC2
R CrA
Rho Oph A
Rho Ophiuchi
rho Ophiuchi
Rho Ophiuchi
Rho Ophiuchi A
V1647 Ori
Star Forming RegionsSince the observations of the Einstein satellite in the early 1980's regions of star formation are known to be X-ray emitters. X-rays are emitted by T Tauri Stars (TTSs), and also by protostars, as discovered both by ROSAT and ASCA. XMM-Newton is able to detect numerous embedded and low luminosity TTSs and protostars. This gives a better knowledge of X-ray sources in regions of star formation, which is important because X-ray emission has various effects on circumstellar and interstellar matter: it stimulates accretion by disk ionization via coupling with magnetic fields, it ionizes the interstellar medium, heats the gas and modifies its chemistry and the dust grain composition, etc... [Ref 14]XMM-Newton has added its contribution to the study of star forming regions for example with an observation of a young stellar system, L1551 IRS5: in most cases of young stellar objects, the X-ray luminous stars are visible and therefore outshine any jets which the objects may produce. But the particular configuration of IRS5 provided a rare opportunity for XMM-Newton. With the X-rays from the stars blocked out by the absorbing material of the surrounding discs, the three EPIC cameras were able to detect for the first time X-ray emission coming from the jets. Analysis of the data has provided new information on the composition of the jets and the way that they interact with their immediate environment. [Ref 17] |
| Berkeley 87 | Cyg OB2 | Cygnus OB2 | DG Tauri | Eagle Nebula |
| HR 6000 | L1551 | M16 | M42 | NGC 6383 |
| NGC346 | NGC6888 | OMC2 | R CrA | Rho Oph A |
| Rho Ophiuchi | rho Ophiuchi | Rho Ophiuchi | Rho Ophiuchi A | V1647 Ori |