Events
IPAC organizes and hosts a number of meetings and conferences.
IPAC hosts seminars every Wednesday from 12-1pm in IPAC's Large Conference Room (102) except where noted. Directions can be found on the visitor information page. Pizza and soda are available for purchase at a modest fee. Some weeks, the Time Domain Forum talk (which is not a lunch talk) is held on Thursday afternoons at 2:30 pm.
To receive seminar notification emails, you may sign up here. If you are interested in presenting a talk or seminar, please contact Peter Capak (Extragalactic), or Stephen Kane (Galactic/Solar System/Exoplanets). To present at the Time Domain Forum, contact Luisa Rebull.
Here is a partial list of astronomy-related talks in Pasadena:
- Caltech Astronomy Tea Talk (Mondays, 4pm)
- Caltech DPS Division Seminar (Mondays, 4pm)
- IR/sub-mm/mm Sack lunch series (Tuesdays, 12:15pm)
- Carnegie Colloquia series (Tuesdays, 4pm)
- Caltech Astronomy Colloquia (Wednesdays, 4pm)
- Caltech Physics Research Conference (Thursdays, 4pm)
- Carnegie Lunch Talk Series (Fridays, 12:15pm)
Special Note: For more astronomy related talks around Pasadena, check the following list maintained by IPAC scientist Solange Ramirez.
Thursday, July 19, 2012
Galaxies emit radiation through a number of different mechanisms in the range 1 GHz to 1 THz, including synchrotron radiation, free-free emission, and thermal dust emission. In addition, 'anomalous microwave emission' (AME) has been detected in our Galaxy at frequencies of 10-100 GHz, and is thought to be due to spinning dust grains. Each of these components is present in different amounts, and with different spectral parameters, depending on the physical environments of each galaxy - and it is an open question about where AME is located, and whether it is a property of only special parts of some galaxies or if it is present everywhere in all galaxies. In this talk, I will summarize my recent work in understanding the spectra of the large-scale emission from our Galaxy and that from other nearby galaxies. In particular, I will focus on the question of whether AME in our Galaxy could be flat-spectrum synchrotron radiation rather than spinning dust (arXiv:1112.0432); searching for new regions of AME in our Galaxy using Planck data (arXiv:1101.2031); and whether AME is present in the integrated spectrum of nearby galaxies (arXiv:1105.6336).
