J/ApJ/899/55 Parameters of protoplanetary disks in 5 SFRs (Aizawa+, 2020)
Search for Alignment of Disk Orientations in Nearby Star-forming Regions: Lupus,
Taurus, Upper Scorpius,
Aizawa M., Suto Y., Oya Y., Ikeda S., Nakazato T.
<Astrophys. J., 899, 55 (2020)>
=2020ApJ...899...55A 2020ApJ...899...55A
ADC_Keywords: Star Forming Region; Molecular clouds; YSOs; Interferometry;
Optical; Radio sources
Keywords: Protoplanetary disks ; Astrostatistics ; Interferometers ;
Molecular clouds
Abstract:
Spatial correlations among protoplanetary disk orientations carry
unique information on physics of multiple-star formation processes. We
select five nearby star-forming regions that comprise a number of
protoplanetary disks with spatially resolved images with ALMA and
Hubble Space Telescope, and we search for the mutual alignment of the
disk axes. Specifically, we apply the Kuiper test to examine the
statistical uniformity of the position angle (PA: the angle of the
major axis of the projected disk ellipse measured counterclockwise
from the north) distribution. The disks located in the star-forming
regions, except the Lupus clouds, do not show any signature of the
alignment, supporting the random orientation. Rotational axes of 16
disks with spectroscopic measurement of PA in the LupusIII cloud, a
subregion of the Lupus field, however, exhibit a weak and possible
departure from the random distribution at a 2σ level, and the
inclination angles of the 16 disks are not uniform as well.
Furthermore, the mean direction of the disk PAs in the LupusIII cloud
is parallel to the direction of its filament structure and
approximately perpendicular to the magnetic field direction. We also
confirm the robustness of the estimated PAs in the Lupus clouds by
comparing the different observations and estimators based on three
different methods, including sparse modeling. The absence of the
significant alignment of the disk orientation is consistent with the
turbulent origin of the disk angular momentum. Further observations
are required to confirm/falsify the possible disk alignment in the
Lupus III cloud.
Description:
In this paper, we focus on five nearby star-forming regions (Lupus,
Taurus, Upper Scorpius, Ophiuchus and Orion) where many protoplanetary
disks are spatially resolved with Atacama Large
Millimeter/submillimeter Array (ALMA) and Hubble Space Telescope
(HST), and search for the statistical signature of the
alignment/nonuniformity of the PAs of the disks.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 82 37 *Parameters of disks in the Lupus region
tableb2.dat 63 50 Parameters of disks in the Taurus region
tableb3.dat 77 16 *Parameters of disks in the Upper Scorpius
tableb4.dat 110 49 Parameters of disks in the Ophiuchus region
tableb5.dat 43 31 *Parameters of disks or jets in ONC
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Note on tableb1.dat : From Yen+, 2018A&A...616A.100Y 2018A&A...616A.100Y
Note on tableb3.dat : From Barenfeld+, 2017ApJ...851...85B 2017ApJ...851...85B
Note on tableb5.dat : From Bally+, 2000AJ....119.2919B 2000AJ....119.2919B
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See also:
II/332 : c2d Spitzer final data release (DR4) (Evans+, 2003)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/124/404 : Upper Scorpius OB association Li survey. II. (Preibisch, 2002)
J/ApJ/651/L49 : Upper Sco OB association IRAC observations (Carpenter+, 2006)
J/ApJS/177/551 : Spitzer c2d survey of Lupus dark clouds (Merin+, 2008)
J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)
J/MNRAS/402/1380 : Rotation velocities in Pleiades & αPer (Jackson+,2010)
J/ApJ/743/54 : Polarization around star-forming regions (Targon+, 2011)
J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)
J/ApJ/746/154 : Improved kinematic plxes for Sco-Cen members (Pecaut+, 2012)
J/ApJ/828/46 : ALMA survey of Lupus protoplanetary disks. I. (Ansdell+, 2016)
J/ApJ/827/142 : ALMA observations of GKM stars in Upper Sco (Barenfeld+, 2016)
J/ApJ/842/L9 : ALMA obs. polarized dust emission from Ser-emb 8 (Hull+, 2017)
J/ApJ/859/21 : ALMA survey of Lupus protoplanetary disks. II. (Ansdell+,2018)
J/A+A/612/L2 : Compilation of stellar rotation data (Kovacs, 2018)
J/A+A/618/A109 : Seismic global parameters of 372 KIC (Mosser+, 2018)
J/MNRAS/482/698 : Ophiuchus DIsc Survey Employing ALMA. I. (Cieza+,2019)
Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Source Source name
19- 27 F9.5 deg RAdeg [234.8/242.8] Right Ascension (J2000)
29- 37 F9.5 deg DEdeg [-42.4/-34.2] Declination (J2000)
39- 41 I3 deg PA [25/355] Position Angle
43- 44 I2 deg E_PA [5/40] Upper error on PA
46- 47 I2 deg e_PA [5/40] Lower error on PA
49- 49 A1 --- l_i [<]? limit flag on i
51- 52 I2 deg i [15/75] inclination angle
54- 55 I2 deg E_i [5/10]? Upper error on i
57- 58 I2 deg e_i [5/20]? Lower error on i
60- 64 F5.1 pc X [-73.4/-48.3] Projected location, in X direction
66- 71 F6.1 pc Y [-133/-91.6] Projected location, in Y direction
73- 78 F6.1 pc Z [-122/-84.6] Projected location, in Z direction
80- 82 A3 --- Lupus In Lupus III?
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Byte-by-byte Description of file: tableb2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Source Source name
13- 20 F8.5 deg RAdeg [64.3/84] Right Ascension (J2000)
22- 29 F8.5 deg DEdeg [16.9/30.8] Declination (J2000)
31- 35 F5.1 deg PA [4.0/179.1] Position Angle
37- 40 F4.1 deg e_PA [0.0/28.0] Symmetric error on PA
42- 45 F4.2 --- cosi [0.15/0.98] cosine, inclination angle
47- 50 F4.2 --- e_cosi [0.0/0.3] Symmetric error on cosi
52- 55 F4.2 arcsec rdisk [0.03/6.2] Disk Radius, arcseconds
57- 60 F4.2 arcsec e_rdisk [0.0/0.7]? Symmetric error on rdisk
62- 63 I2 --- Ref [1/5] References (1)
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Note (1): References as follows:
1 = Kitamura+, 2002ApJ...581..357K 2002ApJ...581..357K
2 = Andrews & Williams, 2007ApJ...659..705A 2007ApJ...659..705A
3 = Guilloteau+, 2011A&A...529A.105G 2011A&A...529A.105G
4 = Long+, 2018ApJ...869...17L 2018ApJ...869...17L
5 = Long+, 2019ApJ...882...49L 2019ApJ...882...49L
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Byte-by-byte Description of file: tableb3.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- Source Source name
25- 33 F9.5 deg RAdeg [238.4/246.8] Right Ascension (J2000)
35- 43 F9.5 deg DEdeg [-25.4/-18.9] Declination (J2000)
45- 47 I3 deg PA [0/176] Position Angle
49- 50 I2 deg E_PA [3/36] Upper error on PA
52- 53 I2 deg e_PA [2/31] Lower error on PA
55- 56 I2 deg i [27/89] inclination angle
58- 59 I2 deg E_i [1/21] Upper error on i
61- 62 I2 deg e_i [2/36] Lower error on i
64- 67 F4.2 arcsec rdisk [0.08/0.82] Disk Radius, arcseconds
69- 72 F4.2 arcsec E_rdisk [0.01/0.63] Upper error on rdisk
74- 77 F4.2 arcsec e_rdisk [0.01/0.33] Lower error on rdisk
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Byte-by-byte Description of file: tableb4.dat
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Bytes Format Units Label Explanations
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1- 25 A25 --- Source Source name
27- 40 A14 --- OName Other name
42- 50 F9.5 deg RAdeg [245.3/250] Right Ascension (J2000)
52- 60 F9.5 deg DEdeg [-25/-23] Declination (J2000)
62- 66 F5.1 deg PA1 [0.1/177]? Position Angle,
Cox+, 2017ApJ...851...83C 2017ApJ...851...83C
68- 71 F4.1 deg e_PA1 [0.2/28.0]? Symmetric error on PA1
73- 77 F5.1 deg PA2 [14.2/174.2]? Position Angle,
Cieza+, 2019, J/MNRAS/482/698
79- 82 F4.1 deg e_PA2 [0.0/18.0]? Symmetric error on PA2
84- 88 F5.3 --- cosi [0.1/0.924] cosine, inclination angle (1)
90- 94 F5.3 --- e_cosi [0.002/0.355] Symmetric error on cosi (1)
96-100 F5.3 arcsec rdisk [0.035/0.65] Disk Radius, arcseconds (1)
102-106 F5.3 arcsec e_rdisk [0.001/0.059] Symmetric error on rdisk (1)
108-110 A3 --- L1688 In L1688?
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Note (1): We list values in Cox+, 2017ApJ...851...83C 2017ApJ...851...83C. If the values
in Cox+ are not available, we use values in Cieza+, 2019, J/MNRAS/482/698.
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Byte-by-byte Description of file: tableb5.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Source Source name
9- 9 A1 --- f_PA Flag on PA (1)
11- 18 F8.5 deg RAdeg [83.7/83.9] Right Ascension (J2000)
20- 27 F8.5 deg DEdeg [-5.44/-5.3] Declination (J2000)
29- 33 F5.1 deg PA [0.0/176.0] Position Angle
35- 38 F4.2 --- cosi [0.2/0.71]? cosine, inclination angle
40- 43 F4.2 arcsec rdisk [0.15/1.35]? Disk Radius
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Note (1): Flag as follows:
a = PA is estimated from orientations of jets (19 occurrences)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 14-Oct-2021