Ping Zhou09/08/09

Green’s SNR catalogue Who is KES78 3 HII regions SFRs are associated with SNRs?

G32.8−0.1     Kes 78 Right Ascension: 18 51 25 Declination: −00 08 Size (/arcmin): 17 Type: S? Flux density at 1 GHz (/Jy): 11? Spectral Index: 0.2? Notes: Part has been called G33.1−0.1. Radio: Elongated shell?

Allakhverdiev.1983---测 g32.8-0.1距离

R1

R2

R3

R1: maser, IR, radio

R2: radio, IR

R3： Maser, IR

Optical depth and temperature(13CO,18CO) τ1−0 = 2.9 ,τ2−1 = 3.3 for the outflow region τ1−0 = 0.9,τ2−1 = 1.8 for the non-outflow region τ1−0 = 1.4,τ2−1 = 2.7 for the maser region τ1−0 = 1.4, τ2−1 = 2.2 for the non-maser region

Uncertainties of τ1−0 , τ2−1 are 16%,34%

Non-maseroutflow

Maseroutflow

Non-maserNo-outflow

MaserNot detected outflow

H 109α at g33.1-0.08 (Caswell and Clark. 1975) Vlsr= 100km/s ,Kinematic distance: 7.1kpc(HI

absorption)(Thomas A. Kuchar et al. 1994) H2O masers Vlsr= 75km/s (Codella et al. 2000)

CH3OH and CO Outflow (Codella et al. 2004)

G33.1-0.1(R1)

OutflowsAnd theirDirections

Vlsr= 100km/s ?Kinematic distance: 7.1kpc(HI absorption)(Thomas A. Kuchar et al. 1994)

G33.2+0.0(R2)quadrpolar outflows?

R1

R2

R3

R1: maser, IR, radio

R2: radio, IR

R3： Maser, IR

Associated with g32.8-0.1(SNR)?

Radio bright region

Direction of outflows

Is g33.1-0.1(R1) near the shock front of a SNR?(shape, direction of outflow) If it is, whether the SNR accelerated the

formation of g33.1-0.1 Are there quadrupolar outflows of R2? g32.8-0.1(SNR) are interacting with the

outflow lobe of IRS18488+0000(R3)?