@article{10902/28539,
year = {2011},
month = {12},
url = {https://hdl.handle.net/10902/28539},
abstract = {Anomalous microwave emission (AME) has been observed by numerous experiments in the frequency range  ~10?60 GHz. Using Planck maps and multi-frequency ancillary data, we have constructed spectra for two known AME regions: the Perseus and ? Ophiuchi molecular clouds. The spectra are well fitted by a combination of free-free radiation, cosmic microwave background, thermal dust, and electric dipole radiation from small spinning dust grains. The spinning dust spectra are the most precisely measured to date, and show the high frequency side clearly for the first time. The spectra have a peak in the range 20?40 GHz and are detected at high significances of 17.1? for Perseus and 8.4? for ? Ophiuchi. In Perseus, spinning dust in the dense molecular gas can account for most of the AME; the low density atomic gas appears to play a minor role. In ? Ophiuchi, the  ~30 GHz peak is dominated by dense molecular gas, but there is an indication of an extended tail at frequencies 50?100 GHz, which can be accounted for by irradiated low density atomic gas. The dust parameters are consistent with those derived from other measurements. We have also searched the Planck map at 28.5 GHz for candidate AME regions, by subtracting a simple model of the synchrotron, free-free, and thermal dust. We present spectra for two of the candidates; S140 and S235 are bright Hii regions that show evidence for AME, and are well fitted by spinning dust models.},
organization = {We thank the referee, Doug Finkbeiner, for useful comments. We thank Justin Jonas for providing the 2326 MHz HartRAO map. We acknowledge the use of the MPIfR Survey Sampler website at http://www.mpifr-bonn.mpg.de/survey.html. We acknowledge the use of the Legacy Archive for Microwave Background Data Analysis (LAMBDA); support for LAMBDA is provided by the NASA Office of Space Science. This research has
made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research makes use of the SIMBAD database, operated at CDS, Strasbourg, France. The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and DEISA (EU). A detailed description of the Planck Collaboration and a list of its members can be found at http://www.rssd.esa.int/index.php?project=PLANCK&page=Planck_Collaboration.},
publisher = {EDP Sciences},
publisher = {Astronomy and Astrophysics, 2011, 536, A20},
title = {Planck early results. XX. New light on anomalous microwave emission from spinning dust grains},
author = {Ade, Peter Anthony Robert and Aghanim, Nabila and Arnaud, M. and Ashdown, Mark and Aumont, J. and Baccigalupi, C. and Balbi, A. and Banday, A. J. and Barreiro Vilas, Rita Belén and Bartlett, J. G. and Battaner, E. and Benabed, K. and Benoît, A. and Bernard, J.-P. and Bersanelli, M. and Bhatia, R. and Herranz Muñoz, Diego and López-Caniego Alcarria, Marcos and Martínez González, Enrique and Vielva Martínez, Patricio},
}