Star Formation Newsletter, No. 352, #19-24⑥ No. 19 The Prospects for Hurricane-like Vortices in Protoplanetary Disks, K.

Gerbig & G. Laughlin, 2022, ApJ, 930, 68① No. 20 Effects of magnetic eld orientations in dense cores on gas kinematics inprotostellar envelopes, A. Gupta et al., 2022, ApJ, 930, 67
No. 21 A Zwicky Transient Facility Look at Optical Variability of Young Stellar
Objects in the North America and Pelican Nebulae Complex, Hillenbrand, L., 2022,ApJ, 163, 263
No. 22 Disk Evolution Study through Imaging of Nearby Young Stars (DESTINYS):A Panchromatic View of DO Tau’s Complex Kilo-astronomical-unit Environment, J.
Huang et al. 2022, ApJ, 930, 171
Ño. 23 Few observation binary orbit solver (FOBOS) from two (or more)
astrometric observations, R. J. Houghton & S. P. Goodwin, 2022, MNRaS, 513, 2635
No. 24 The Young Embedded Disk L1527 IRS: Constraints on the Water Snowline
and Cosmic- Ray Ionization Rate from HCO+ Observations M. L. R. van’t Hoff et⑤al., 2022, ApJ, 932, 6,,fi

花輪 知幸 (千葉大), 6月24日

No. 20 Effects of Magnetic Field Orientations in Dense Cores on Gas Kinematics
in Protostellar Envelopes, A. Gupta et al. 2022, ApJ, 930, 67
Perseus 領域にある 72 の class 0/I 天体に対し、磁場と回転軸の関係を統計的に調査
1000 au scale, 4000 au scale SMA (Stephens+19) + JCMT (BISTRO).
Fig. 31000 au scales = 0.12
p = 0.52
無相関

s = 0.22
p = 0.23
無相関rv?
<latexit sha1_base64="34sbSGl2x+K5R/BsGQ1bRz2TRIg=">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</latexit>

Spearman correlation
スピアマン順位相関

s = 0.35
p = 0.05
相関?

rv? /rvk<latexit sha1_base64="W7cJxTkET9oahUvuMwhc7yyQuVU=">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</latexit>

Fig .4 4000 au と 1000 au の磁場の向き変化は速度勾配と無相関
fl

磁場とOut owの向きの違い

No. 21 A Zwicky Transient Facility Look at Optical Variability of Young Stellar Objects in theNorth America and Pelican Nebulae Complex, L. Hillenbrand et al. ApJ, 163, 263 (2022)
Zwicky Transient Facility = 北天全体を2日毎に光学観測

周期探査
0.5 - 290 days

g-band (472.2 nm) 20.8等まで,r-band (634.0 nm) 20.6等まで30回以上観測されたもの

No. 22 Disk Evolution Study through Imaging of Nearby Young Stars (DESTINYS):
A Panchromatic View of DO Tau's Complex Kilo-astronomical-unit Environment
VLT/SPHERE

0104.C-0850(A)H-band polarimetric and total intensity imaging

1

VLT/SPHERE

1104.C-0415(E) (DESTINYS)

H-band polarimetric and total intensity imaging

1

ALMA

2016.1.00627.S

12CO, 13CO, C18O, and CS line imaging

1, 2, 3, 4

HST/STIS

HST-GO-9136

Broadband optical imaging

5, 6

Apache Point Observatory

Sloan Digital Sky Survey

g-, r-, i-band imaging

7, 8

Herschel PACS

KPOT_bdent_1 (GASPS)

160 μm imaging

9, 10

DO Tau は
HV Tauと近接遭遇し、放出さた仮説:Winter+18<latexit sha1_base64="nXnhAAKkYfqHidf9olLQoTaL9/c=">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</latexit>

Q =QIPS cos(2 )U = QIPS sin(2 )UIPS sin(2 )UIPS cos(2 )⇠ 4 ⇥ 10 4 M<latexit sha1_base64="tKtbHCEHRUk40JNbTNBkjcqq1BE=">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</latexit>

Ejecta か ? Remnant か?
重力的には束縛されていない

No. 23. Few observation binary orbit solver (FOBOS) from two (or more) astrometricobservations, Rebecca J. Houghton & P. Goodwin, MNRAS, 513, 2653 (2022)
たった2回の天空上の位置だけで(もっともらしい)連星軌道を求めるアプリ<latexit sha1_base64="PWo2TcehWjVhSh2uY4vCmfRpoq4=">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</latexit><latexit sha1_base64="PF2KgY7X/u97gmHp0cuzcb+hOII=">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</latexit>s(t1 ), s(t2 ),<latexit sha1_base64="3wqAIa0eU+ynwGLQPeWoMvcecZw=">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</latexit>✓, d Gaia<latexit sha1_base64="TDvVBYboQi1zOjRhSgPNFuEcXlc=">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</latexit>

数分の計算でOK乱数で模擬連星を生成 → 観測に適合しないものを排除 → 生き残りが確率密度
間違った答えを与えることもあるが, 45/60の場合に 正しい半長径を41/60の場合に正しい軌道傾斜角を、35/60で正しい離心率を与える(信頼度68％)。

Hierarchical triplet は連星と近似できるので利用可能

疑似観測例 S17

No. 24 The Young Embedded Disk L1527 IRS: Constraints on the Water Snowline andCosmic-Ray Ionization Rate from HCO+ Observations
HCO+は Snowline の外側だけにある。HCO+ の穴からSnowline が算出できる?!
観測HCO+ (J=4-3) 2014 June, H13CO+ (J=3-2) 2015 August

論文の主張
Snowline は 1.8 au < r < 4.1 au
0.5 秒角分解能

No. 19 The Prospects for Hurricane-like Vortices in Protoplanetary Disks,
K. Gerbig & G. Laughlin, ApJ, 930, 68 (2022)
Model
Hayashi-81 の温度・密度
それぞれの場所で水蒸気量は平衡
非平衡は流れによって生じる
化学変化は考えない

流線が閉じていると仮定して、台風と同じ理屈で原始惑星系円盤に渦を作れる?
Dustに付着したH2Oが溶ける=水蒸気の蒸発?

潜熱に比例した力を求める。