Star Formation Newsletter No. 363, 33-48
33. VISIONS: the VISTA Star Formation Atlas I. Survey overview, Meingast et al.
34. VISIONS: the VISTA Star Formation Atlas II. The data processing pipeline, Meingast et al.
35. The Parallax and 3D Kinematics of Water Masers in the Massive Star-forming Region G034.43+0.24,
Mai et al.
36. Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves, Matsumoto & Arakawa
37. Processing of hydroxylamine, NH2OH, an important prebiotic precursor, on interstellar ices,Mplpeceres et al.
38. Misalignment of the outer disk of DK Tau and a rst look at its magnetic eld using
spectropolarimetry, Nelissen et al.
39. Gaia colour-magnitude diagrams of young open clusters⋆ Identi cation in the UBC catalogue and acomparison of manual and automated analysis, Negueruela & de Burgos
40. Rubin LSST Observing Strategies to Maximize Volume and Uniformity Coverage of Star-forming
Regions in the Galactic Plane, Prizinzano et al.
41. Short-lived radioisotope enrichment in star-forming regions from stellar winds and supernovae, Parkeret al.
42. Paradigmatic examples for testing models of optical light polarization by spheroidal dust, Peest et al.
43. Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4, Perez Paolino etal.
44. An SMA Survey of Chemistry in Disks Around Herbig AeBe Stars, Pegues et al.
45. Photometric and spectroscopic monitoring of YSOs in nearby star-forming regions – I. Eruptive YSOs,Contreas Pena et al.
46. X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A* Peissker et al.
47. HOPS 361-C’s Jet Decelerating and Precessing through NGC 2071 IR, Rubinstein et al.
48. Probing the global dust properties and cluster formation potential of the giant molecular cloudG148.24+00.41, Rawat et al.
fififi

花輪知幸 (千葉大学)

DK TauA. cTTs wide binary, dipper
Strong veiling (accretion), inner disk wind, jets
観測

CFHT 3.6 m 2010-2012

Spectral Polarimetry, 370 - 10

↑ veiling (=continuum from accretion)

rtrunc ⇠ (5.2 ± 1.1)R⇤ for HeI emission line
<latexit sha1_base64="vALHvT3NB7ePxKA9WmXWHA9CxwI=">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</latexit>

fifi

No. 38 Misalignment of the outer disk of DKTau and a rst look at its magnetic
eld using spectropolarimetry, Nelissen et al. A&A 670, A165 (2023)

吸収線
(星表面)

輝線
AccretionFunnelWide binary, cavity, cluster, core, 3D dust map, dust properties

No 34 paper IIpipeline

ウィーン大学https://visions.univie.ac.at/

No. 40 Rubin LSST Observing Strategies to Maximize Volume and Uniformity
Coverage of Star-forming Regions in the Galactic Plane (研究計画)

33&34. VISIONS: the VISTA Star Formation Atlas I. Survey overview, II. The dataprocessing pipeline, Meingast et al.
ESO’s public survey. The Visible and Infrared Survey Telescope for Astronomy(VISTA), using the VISTA Infrared Camera (VIRCAM), and collected data in thenear- infrared passbands J (1.25 μm), H (1.65 μm), and KS (2.15 μm).
Cero Paranal 4m telescope, 0.339 arcsec/pixel (seeing は 〜0.66秒)
1,15x106 imagesa) 同一領域を浅く広く6回探査(2017年4月—2022年3月)b) 減光が強い領域を深く探査c) 源光がほとんどない領域を対照領域として探査d) 固有運動も測定 (Gaia で測定できない星も含む)
Data release 1 (Ophiuchus), 2 (Corona Asutralis). 未発表あり

固有運動の測定例: 2MASS 19205383-3950043 (196.41 mas yr-1)

16等より明るければ 1 mas yr (0.5 km/s @ 100 pc)の分解能
観測の深さ (Orion)

46. X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*Peissker et al. 2023, ApJ, 944, 231
SINFONI (VLT), NACO (VLT), ISAAC (VLT), VISIR (VLT), SHARP (NTT),NIRCAM2 (KECK), CO, H30α (ALMA)

IRS7: Supergiant
X3a. Central stellar source
X3b. Hot thermal blob
X3c. Hot blob晩期型星ではない
CO band が見えない39. Gaia colour-magnitude diagrams of young open clusters. Negueruela & de Burgos
A&Ap, accepted
OC nder (Gaia データから散開星団を探すスクリプト)は結構上手く動作する。
ただし AI は extinction を低く見積もり年齢を間違える傾向が見られる。

47 HOPS 361-C’s Jet Deceleratingand Precessing through NGC 2071 IRRubinstein et al., 2023, ApJ, 948, 39

fi

Jet の knot の固有運動を測った

48. Probing the global dust properties and cluster formation potential of the giant
molecular cloud G148.24+ 00.41, Rowan et al. 2023, MN, 521, 2786
UKIDSS, Herschel, 12CO (Purple Mt.) など Archive を使って分子雲を調べた

37 Processing of hydroxylamine, NH2OH, an important
prebiotic precursor, on interstellar ices
NH2OH は宇宙電波で検出されているが、存在比が低い理由を考える。
10 K では NHO + H → NO + H2 が生成を阻害
20 K が NH2OH + H → HNOH + H2 が破壊
共著者に 古家さん、相川さん44. An SMA Survey of Chemistry in Disks
Around Herbig AeBe Stars, Pegues et al.
2023, ApJ, 948, 57

42 Paradigmatic examples for testing models of optical light polarization by spheroidal dust,
Peest et al. 2023, A&A 673, A112
偏光を計算できるMonte Carlo Radiative Transfer code を作成した。Stokes parameterを全て計算しているところが新しい?

45 Photometric and spectroscopic monitoring of YSOs in nearby star-forming regions–I. Eruptive YSOs, Contreras Pena 2023, MN, 521, 5669