theIASHub | 18 Jul, 2025 | 7
IRAS 18162-2048 : Recently, in a significant astronomical breakthrough, scientists from the Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram, have detected circularly polarised radio emissions near the massive young protostar IRAS 18162-2048.
o This marks the first direct evidence of strong magnetic fields in the immediate environment of such a protostar.
o The protostar is known for powering HH80-81, one of the largest and brightest bipolar jets in the galaxy—ejecting high-speed matter in opposite directions.
o These Herbig-Haro (HH) jets are crucial markers of early star formation.
o This strongly suggests that magnetic fields play a key role in launching and regulating such massive outflows.
o It forms from the collapse of a giant molecular cloud in the interstellar medium, composed mainly of gas and dust.
o Becomes a main sequence star once hydrogen fusion begins in its core.
o Typically obscured by surrounding dust, making them difficult to detect in visible light.
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