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.
Wednesday, July 18, 2012
I will present the analysis and modeling of the dust heating and emission of the nearby, starbursting dwarf galaxy NGC 4214. Due to its proximity and the great wealth of data available from the UV to the mm-range (from Galex, Hubble, Spitzer, Herschel, Planck and IRAM) a detailed modeling of the dust heating and emission is possible. A key point of our modeling is that we distinguish the emission from HII region and their associated PDRs and the emission from diffuse dust. For both components we apply templates from the literature (Groves et al. 2005 for the emission of HII+PDR region, and the library of Popescu et al. 2011 describing the diffuse emission in galaxy disks) derived with a detailed modelling based on a realistic geometry and including radiation transfer. Due to the wealth of data available for NGC 4214, very few free parameters are present in the problem. We find that we can fit the dust emission of NGC 4214 to a large extent (but not perfectly) with these models. I will present the results, identify the agreements and discrepancies between data and model and discuss the conclusions.
