Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains

Details Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains

2001-09-27

arxiv.org/abs/astro-ph/0109534v1

Astronomy and Astrophysics

Astrophysics

18 pages, 5 figures, accepted by ApJ

Scientific paper

10.1086/338225

We present the first tentative detection of spinning dust emission from specific astronomical sources. All other detections in the current literature are statistical. The Green Bank 140 foot telescope was used to observe 10 dust clouds at 5, 8, and 10 GHz. In some cases, the observed emission was consistent with the negative spectral slope expected for free-free emission (thermal bremsstrahlung), but in two cases it was not. One HII region yields a rising spectrum, inconsistent with free-free or synchrotron emission at the 10 sigma level. One dark cloud (L 1622) has a similar spectrum with lower significance. Both spectra are consistent with electric dipole emission from rapidly rotating dust grains ("spinning dust"), as predicted by Draine & Lazarian.

Affiliated with

Also associated with

No associations

Rating

Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-154823