1. MX002: Molecular Gas in the LMC MX002 observers in 2005: Juergen Ott, Tony Wong, Erik Muller, Jorge Pineda, Min Wang, Annie Hughes

2. Talk Outline the MX002 project observations in 2005 the molecular ridge near 30 Doradus: mass function, X-factor, line profiles, ASTE/Mopra the inner LMC plans for 2006 Annie Hughes, UNSW 3mm workshop, November 2005

3. MX002 Overview 12 CO(J=1-0) survey of the Magellanic System (LMC+SMC+MB) Scientific Motivations Molecular cloud formation and evolution Molecular cloud formation and evolution Initial stages of star formation Initial stages of star formation Low-Z, high-UV replicates high-z conditions Low-Z, high-UV replicates high-z conditions Annie Hughes, UNSW 3mm workshop, November 2005

4. MX002 Overview Why the LMC? unique opportunity for southern telescopes unique opportunity for southern telescopes low metallicity ~0.3Z , emulating conditions at high-z low metallicity ~0.3Z , emulating conditions at high-z high angular resolution + overview of dynamics in whole galaxy high angular resolution + overview of dynamics in whole galaxy existing HI dataset existing HI dataset 30 Doradus - an exciting molecular gas laboratory! 30 Doradus - an exciting molecular gas laboratory! Annie Hughes, UNSW 3mm workshop, November 2005

5. Observation Strategy OTF mapping ~120 5’x5’ fields OTF mapping ~120 5’x5’ fields CO(J=1-0) (115.271 GHz) CO(J=1-0) (115.271 GHz) mostly old correlator/RX mostly old correlator/RX ~100 minutes per field ~100 minutes per field BW~64 MHz BW~64 MHz Δv= ~0.16 km/s Δv= ~0.16 km/s RMS~0.4 K RMS~0.4 K beam FWHM ~ 30” beam FWHM ~ 30” Tsys @115 GHz ~600 K Tsys @115 GHz ~600 K mostly extragalactic “green-time” mostly extragalactic “green-time” Annie Hughes, UNSW 3mm workshop, November 2005

6. The Molecular Ridge Annie Hughes, UNSW 3mm workshop, November 2005 ridge + arc ~ 35% of LMC molecular gas ridge + arc ~ 35% of LMC molecular gas

7. The Molecular Ridge Annie Hughes, UNSW 3mm workshop, November 2005

8. The Molecular Ridge Annie Hughes, UNSW 3mm workshop, November 2005

9. The Molecular Ridge Annie Hughes, UNSW 3mm workshop, November 2005

10. The Molecular Ridge Annie Hughes, UNSW 3mm workshop, November 2005

11. Clump Mass Spectrum Annie Hughes, UNSW 3mm workshop, November 2005 M VIR ~R(ΔV) 2, dN/dM VIR  M  α ~ 1.5 α ~ 1.6 Analysis by Jorge Pineda & Juergen MW α = 1.6-1.8, NANTEN LMC α = 1.9

12. X CO factor Annie Hughes, UNSW 3mm workshop, November 2005 X CO =N H2 /I CO N H2 ~R(ΔV)/R 2 X CO ~ΔV/(RT b ) Analysis by Jorge Pineda & Juergen

13. Comparison with ASTE Annie Hughes, UNSW 3mm workshop, November 2005 Analysis by Tony and Yojhi

14. Comparison with ASTE Annie Hughes, UNSW 3mm workshop, November 2005 Analysis by Tony and Yojhi

15. central R~1.2 kpc relationship between atomic and molecular gas, focusing on pressure and dynamics includes star-forming and non-SF clouds Inner LMC Survey Annie Hughes, UNSW 3mm workshop, November 2005

16. Preliminary Results Annie Hughes, UNSW 3mm workshop, November 2005

17. Preliminary Results

18. Plans for 2006+ Annie Hughes, UNSW 3mm workshop, November 2005 molecular ridge mapping is complete continue inner LMC mapping Mopra follow-up 3mm multi-line survey of ridge clouds to investigate physical parameters as function of the UV radiation field ATCA follow-up of ridge clouds NANTEN2/ASTE/APEX

19. Finally… Annie Hughes, UNSW 3mm workshop, November 2005 …a huge thank you to everyone involved in the Mopra upgrade!

20. Appendix Annie Hughes, UNSW 3mm workshop, November 2005

21. A Big Mess? Annie Hughes, PhD Progress Review, November 2005

22. Preliminary Results Annie Hughes, UNSW 3mm workshop, November 2005

23. Preliminary Results Annie Hughes, UNSW 3mm workshop, November 2005