1. PAPER 7: The IR-Radio Correlation in High-Mass YSOs
Riccardo Cesaroni, Maite Beltràn, Melvin Hoare, Maohai Huang, Peter Martin, Sergio Molinari, Luca Olmi, Howard Smith, Michael Smith, Guy Stringfellow, Leonardo Testi, Mark Thompson
Goal: classify high-mass (>8 MO) YSOs according to their evolutionary phase  colours + Lbol + Lradio + Mgas
HERSCHEL
ancillary data

2. Main steps Source identification in HERSCHEL SDP images
Distance determination
SED construction and Lbol calculation
Radio counterparts identification (CORNISH)
Clusters identification
Data analysis: distance independent plot, colours, etc.
Interpretation: theoretical curves for plot

3. Current situation Source identification (also PAPER 3): Molinari & c.
DONE: 5 preliminary catalogues
TBD: single (band merged) catalogue from 5 catalogues
MIPSGAL & BOLOCAM counterparts
Distances (all PAPERS): distance task force
DONE: 13CO cube & NH3 pointed observ. (Effelsberg, Medicina, Onsala)
TBD: calculation from rotation curve + corrections for deviations
SED and Lbol (also PAPER 3): Robitaille & c.
DONE: program ready to run with HERSCHEL fluxes and tested
TBD: run with real data

4. Clusters identification Data analysis
Radio counterparts
DONE: catalogue of CORNISH sources in SDP fields
cross-correlation HERSCHEL-CORNISH
RESULT: few (<60) associations with free-free  ~250 CORNISH sources without HERSCHEL  extragalactic objects
TBD: cross-corr. with final, band-merged HERSCHEL catalog
Clusters identification
Based on GLIMPSE: postponed to follow-up paper…
Data analysis
DONE: test with RMS + BOLOCAM sources
TBD: the real work…
Interpretation
IN PROGRESS: toy model for Lradio, Lbol, Mgas as a function of time

5. Non-HERSCHEL have more negative indices  non-thermal  extragalactic
Non-HERSCHEL radio sources are fainter  extragalactic

6. Test with RMS +BOLOCAM
Lradio vs Lbol plot  ~30 sources with radio excess: distance problem?
Distribution of Lradio/Lbol  double peak: YSOs & HIIs
Lbol vs Mgas plot  Lbol  Mgas
Lradio/Lbol vs Mgas/Lbol distance independent plot: to be studied for different HERSCHEL colours

7. radio excess: distance problem?
dist. x 3

8. B0.5
O9.5
completeness limit

9. non-radio
radio
RMS sample
Molinari et al. (2008)

10. HIIs
YSOs/HIIs
YSOs