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W4 West(AFGL 333) 領域におけ るアンモニア分子輝線観測 副島隆史 ( 大分大学 M2) 仲野誠(大分大学) 面高俊宏, 半田利弘, 亀﨑達也, Ross Burns, 馬場達也, 松尾光洋, 宮崎竜之介, 吉田友哉(鹿児島大学) 永山匠, 砂田和良, James Chibueze,

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Presentation on theme: "W4 West(AFGL 333) 領域におけ るアンモニア分子輝線観測 副島隆史 ( 大分大学 M2) 仲野誠(大分大学) 面高俊宏, 半田利弘, 亀﨑達也, Ross Burns, 馬場達也, 松尾光洋, 宮崎竜之介, 吉田友哉(鹿児島大学) 永山匠, 砂田和良, James Chibueze,"— Presentation transcript:

1 W4 West(AFGL 333) 領域におけ るアンモニア分子輝線観測 副島隆史 ( 大分大学 M2) 仲野誠(大分大学) 面高俊宏, 半田利弘, 亀﨑達也, Ross Burns, 馬場達也, 松尾光洋, 宮崎竜之介, 吉田友哉(鹿児島大学) 永山匠, 砂田和良, James Chibueze, 久野成夫 ( NAOJ ) 31th NRO Users Meeting (2013)

2 Introduction Interaction HII region with molecular cloud W3/W4 HII region - High density layer - - W3Main, W3(OH), AFGL333 AFGL333-Ridge (Rivera-Ingraham et al. 2013) - 2.0 kpc (Xu et al. 2006) - chemical properties of massive clumps (Sakai et al. 2007) W4 AFGL333-Ridge W3(OH) W3 Main Fig.1. Optical image by Roger Rao Fig.2. IR image by Spitzer IRAC W3

3  Instruments NRO 45m telescope H22 + SAM45  Period 2013/1/26 – 2013/6/11 (total ~ 135 h)  Lines NH 3 (J,K) = (1,1), (2,2), (3,3) and H 2 O maser - velocity resolution ~ 0.38 km/s - HPBW ~ 73’’  Method 1grid=37.5”×37.5”, total 267 positions NewStar – Noise level T rms ~ 0.043 K Observations – Backup program

4  NH 3 Main cloud - 11.8’×6.2’ (6.9×3.6 pc) - dent in the east BRC (SFO 05) - northeast  H 2 O 2 H 2 O masers - one is newly detected Results dent BRC maser Fig.3. NH3(1,1) Integrated intensity map (K km/s )

5 Fig.5. The black eclipse shows the extent obtained N(NH 3 ) τ = 0.63 ± 0.14 T rot = 16.1 ± 0.4 [K] N(NH 3 ) = 1.55×10 15 [cm -2 ] R = 0.9×2.9 [pc] M LTE = 2600 M ☉, M vir = 1800 M ☉ Fig.4. observed spectra in the NH3 T a (K) (km/s) Results

6 Broad velocity width - east High temperature - north, east Results Fig.7. Rotational temperature map Fig.6. Velocity width map 30 28 26 24 22 20 18 16 14 (K) 2.5 1.5 1.0 3.0 2.0 (km/s)

7 Discussion Broad velocity width and high T rot in the east IRAS 02245+6115 - B0.5 star - compact HII region (Hughes & Viner 1982) 2 clusters - IRAS 02245+6115 - IRAS 02244+6117 Fig.8. IR image of the AFGL333-Ridge (left). The green contour shows the extent of the compact HII region (right). IRAS 02244+6117 IRAS 02245+6115 b (degree) 1.4GHz (CGPS)

8 b (degree) l (degree) Broad velocity width and high T rot and in the east would be originated with compact HII region. Fig.9. The relation of HII region to velocity-width Fig.10. The relation of HII region to T rot 2.5 1.5 1.0 3.0 2.0 (km/s) Discussion Broad velocity width and high T rot in the east Cluster position Center position


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