Star Formation Newsletter No. 354, #50-56
50. Large-scale expansion of OB stars in Cygnus, A.L. Quintana & N.J.
Wright, MNRAS, 515, 687 (2022)
51. Molecular precursors of the RNA-world in space: new nitriles in theG+0.693-0.027 molecular cloud, V.M. Rivilla et al., Frontiers in Astronomy
and Space Sciences, vol. 9, A876870 (2022)
52. Turbulent magnetic eld in the HII region Sh 2-27, N.C. Raycheva et al.,A&A, 663, A170 (2022)
53. A survey of HDCO and D2CO towards Class 0/I proto-brown dwarfs, B.
Riaz and W.-F. Thi, MNRAS, 514, 3604 (2022)
54. Gemini-LIGHTS: Herbig Ae/Be and massive T-Tauri protoplanetary disks
imaged with Gemini Planet Imager, E.A. Rich et al. AJ, 164, 104 (2022)
55. Optical and Near-infrared Excesses are Correlated in T Tauri Stars, K.
Sullivan and A.L. Kraus, ApJ, 928, 134 (2022 )56. The Galactic dynamics revealed by the lamentary structure in atomic
hydrogen emission, J.D. Soler et al., A&A, 662, A96 (2022)

fifi

花輪 知幸 (千葉大学)

50. Large-scale expansion of OB stars in Cygnus, A.L. Quintana & N.J. Wright,MNRAS, 515, 687 (2022)
A, B, C, D, E, F の6 Associations に分類

Feedback (SN) か Intrinsic (turbulence)か
超新星1つでは運動量が説明できない星の生まれる前から膨張している(年齢 BCE 3-5 Myr, ADF 〜10 Myr)
Larson 則が予言する乱流レベルと同じOrion, Carina などの 星団でもADF

BCE

51. Molecular precursors of the RNA-world in space: new nitriles in theG+0.693-0.027 (Sgr B2) molecular cloud, V.M. Rivilla et al., Frontiers in
Astronomy and Space Sciences, vol. 9, A876870 (2022) R-C≡N を含む有機化合物
初検出

初検出?

初検出?

初検出

TMC-1に続き2例目

HOCN

HCOCN (tentative detection)

HOCH2CN(Tentative detection)

52. Turbulent magnetic eld in the HII region Sh 2-27, N.C. Raycheva et al.,A&A, 663, A170 (2022)<latexit sha1_base64="C8RP5l4WKE8mMz5DDoYTz+RY7W4=">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</latexit>

I(H↵ )<latexit sha1_base64="KZ2tZHt27Y1LZneFB5ugtyJkGrs=">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g=</latexit><latexit sha1_base64="Vdysz5u6o9jHdy/HBNW1CWrTh9E=">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</latexit>fiE(BV)2.3 GHz Synchrotron,<latexit sha1_base64="XDduaNTkwFCNrpWeqwes21otSrg=">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</latexit>

RM /Z

ne Bk ds

Rotation measure (RM)hBk i =<latexit sha1_base64="QfAsBdsHV3o4FaIeoEMyp2S7WhM=">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</latexit>

4.5 ± 0.1 µG

53. A survey of HDCO and D2CO towards Class 0/I proto-brown dwarfs, B. Riazand W.-F. Thi, MNRAS, 514, 3604 (2022)

HDCO

D2CO

r: Pearson 係数

CO 欠乏 →CO depletion factor

54. Gemini-LIGHTS: Herbig Ae/Be and massive T-Tauri protoplanetary disks
imaged with Gemini Planet Imager, E.A. Rich et al. AJ, 164, 104 (2022) 25頁
PDI (Polarized Differential Imaging)

3 褐色矮星 (1つ発見), a super Jupiter mass (V 1295)

SEEDS (Subaru) と似ているが質量が大きい方に寄っているQ⇤ = Q<latexit sha1_base64="d3cZ7t9sV8ydgmS84bHVA3c7tVg=">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</latexit>U⇤ = UI ⇥ fQI ⇥ fUQ⇤ cos 2

U ⇤ sin 2

U' = +Q⇤ sin 2

U ⇤ cos 2<latexit sha1_base64="d7njmQArJnl2F7eXQiHt2n110LI=">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</latexit>

Q' =Uφが1回散乱、Qφが複数回散乱を表すようφを調整する。

55. Optical and Near-infrared Excesses are Correlated in T Tauri Stars, K. Sullivanand A.L. Kraus, ApJ, 928, 134 (2022)
Hartigan et al (1991), ….., Herczeg & Hillenbrand (2014) の改訂版 WISEを利用, 連星を考慮
赤外超過 JHKs W1(3.6 μm), W2 (4.5 μm) 光学 (Veiling) 133 星 @ Taurus

We found that the ∼50% of our disk-host sample with no measured veiling showed
progressively more asymmetrical NIR excess distributions at redder wavelengths,
indicating that they still have circumstellar material (consistent with their disk-host status),
but that it may be cooler than the stars with nonzero veiling.

56. The Galactic dynamics revealed by the lamentary structure in atomic
hydrogen emission, J.D. Soler et al., A&A, 662, A96 (2022)
HI4PI (Effersberg, Perks, 16.’2)

Soler+21 (第１象限) を全天に拡張2<latexit sha1_base64="5qiWDW99JJ984qFwRI7aMrOflQA=">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</latexit>@ I
11 Hxy + Hyx
x = ` cos b, y = b, Hxx =, ✓ = tan
2@x
2Hxx Hyy
H の固有値+ >フィラメントの向き

銀河面に対し水平なフィラメントが目立つ(10 kpc < r <18 kpc)

fi<latexit sha1_base64="I3F9IDF3HH467xIK5PsFcDd//6I=">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</latexit>

銀河面に平行銀河面に垂直k