J/MNRAS/482/698 Ophiuchus DIsc Survey Employing ALMA (ODISEA). I. (Cieza+, 2019)
The Ophiuchus DIsc Survey Employing ALMA (ODISEA)
I. Project description and continuum images at 28au resolution.
Cieza L.A., Ruiz-Rodriguez D., Hales A., Casassus S., Perez S.,
Gonzalez-Ruilova C., Canovas H., Williams J.P., Zurlo A., Ansdell M.,
Avenhaus H., Bayo A., Bertrang G.H.-M., Christiaens V., Dent W.,
Ferrero G., Gamen R., Olofsson J., Orcajo S., Pena Ramirez K., Principe D.,
Schreiber M.R., van der Plas G.
<Mon. Not. R. Astron. Soc., 482, 698-714 (2019)>
=2019MNRAS.482..698C 2019MNRAS.482..698C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, pre-main sequence; Millimetric/submm sources;
Photometry, infrared
Keywords: protoplanetary discs; circumstellar matter; stars: pre-main-sequence;
submillimetre: planetary systems
Abstract:
We introduce the Ophiuchus DIsc Survey Employing ALMA (ODISEA), a
project aiming to study the entire population of Spitzer-selected
protoplanetary discs in the Ophiuchus Molecular Cloud (∼300 objects)
from both millimetre continuum and CO isotopologues data. Here we
present 1.3mm/230GHz continuum images of 147 targets at 0.2" (28au)
resolution and a typical rms of 0.15mJy. We detect a total of
133 discs, including the individual components of 11 binary systems
and 1 triple system. 60 of these discs are spatially resolved. We find
clear substructures (inner cavities, rings, gaps, and/or spiral arms)
in eight of the sources and hints of such structures in another four
discs. We construct the disc luminosity function for our targets and
perform preliminary comparisons to other regions. A simple conversion
between flux and dust mass (adopting standard assumptions) indicates
that all discs detected at 1.3mm are massive enough to form one or
more rocky planets. In contrast, only ∼50 discs (∼1/3 of the sample)
have enough mass in the form of dust to form the canonical
10M⊕ core needed to trigger runaway gas accretion and the
formation of gas giant planets, although the total mass of solids
already incorporated into bodies larger than cm scales is mostly
unconstrained. The distribution in continuum disc sizes in our sample
is heavily weighted towards compact discs: most detected discs have
radii <15au, while only 23 discs (∼15% of the targets) have radii >30au.
Description:
The Ophiuchus DIsc Survey Employing ALMA (ODISEA) sample is the full
catalogue of 297 young stellar objects (YSOs) in Ophiuchus from the
"Cores to Discs" (c2d) Spitzer Legacy Programme
(Evans+ 2009ApJS..181..321E 2009ApJS..181..321E -- see Cat. II/332).
In this paper we focus on the 147 sources from Sample A, containing
all Class I and Flat Spectrum sources, specifically objects with
[K]-[24]>6.75mag, and Class II sources with K>10mag, listed in Table 1.
Table 2 shows the 2MASS and Spitzer photometry from these 147 objects,
taken from the NASA/IPAC Infrared Science Archive.
All of our 147 targets in Sample A were observed under the Cycle-4
ALMA programme 2016.1.00545.S on a single scheduling block, which was
executed 3 times between 2017 July 13 and 14. The nominal array
configuration was C40-5, and 42-45 of the 12m ALMA antennas were
used with baselines ranging from 17 to 2647m.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 92 147 The Ophiuchus DIsc Survey Employing ALMA
(ODISEA) Cycle-4 sample
table2.dat 138 147 Photometry from the Spitzer Cores to Discs (c2d)
catalog
table3.dat 89 160 Fluxes and sizes at 1.3mm from ALMA Cycle-4
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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/130/1733 : Optical spectroscopy of ρ Oph stars (Wilking+, 2005)
J/ApJ/667/308 : Weak-line T Tauri in Spitzer c2d Survey. II. (Cieza+, 2007)
J/ApJ/671/1800 : SCUBA observations of ρ Oph cloud (Andrews+, 2007)
J/ApJS/179/249 : Low-luminosity embedded protostar population (Dunham+, 2008)
J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)
J/ApJ/696/L84 : Primordial circumstellar disks in binary syst. (Cieza+, 2009)
J/AJ/138/703 : Deep MIPS observations of IC 348 nebula (Currie+, 2009)
J/ApJ/712/925 : Transition circumstellar disks in Ophiuchus (Cieza+, 2010)
J/ApJ/724/835 : The Spitzer c2d survey of WTTSs. III. (Wahhaj+, 2010)
J/AJ/142/140 : Optical spectroscopy of ρ Oph stars. II. (Erickson+, 2011)
J/ApJ/745/19 : Binary systems in Taurus-Auriga (Kraus+, 2012)
J/other/Nat/481.167 : 2002-2007 PLANET microlensing events (Assan+, 2012)
J/ApJ/771/129 : Submillimetric Class II sources of Taurus (Andrews+, 2013)
J/A+A/579/A66 : Accretion in ρ-Ophiucus (Manara+, 2015)
J/ApJ/809/8 : Terrestrial planet occurrence rates for KOIs (Burke+, 2015)
J/MNRAS/457/2877 : Kepler M dwarf stars revised properties (Gaidos+, 2016)
J/MNRAS/457/4089 : Frequency of snowline-region planets (Shvartzvald+, 2016)
J/ApJ/827/142 : ALMA observations of GKM stars in Upper Sco (Barenfeld+, 2016)
J/ApJ/828/46 : ALMA survey of Lupus protoplanetary disks. I. (Ansdell+, 2016)
J/ApJ/831/125 : ALMA 887µm obs. of ChaI star-forming reg. (Pascucci+, 2016)
J/AJ/153/240 : Protoplanetary disks in sigma Ori with ALMA (Ansdell+, 2017)
J/A+A/603/A3 : VLT/NaCo Large program. IV. Stat. (Vigan+, 2017)
J/ApJ/845/44 : SMA obs. of 50 nearby protoplanetary disks (Tripathi+, 2017)
J/ApJ/859/21 : Lupus protoplanetary disks with ALMA. II. (Ansdell+, 2018)
J/ApJ/875/L9 : ODISEA. II. Disk dust mass distributions (Williams+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/147] Running sequence number
5- 10 A6 --- --- [SSTc2d]
12- 27 A16 --- SSTc2d Spitzer source name (JHHMMSS.s+DDMMSS)
29- 30 I2 h RAh Hour of right ascension (J2000)
32- 33 I2 min RAm Minute of right ascension (J2000)
35- 39 F5.2 s RAs Second of right ascension (J2000)
41 A1 --- DE- Sign of declination (J2000)
42- 43 I2 deg DEd Degree of declination (J2000)
45- 46 I2 arcmin DEm Arcminute of declination (J2000)
48- 52 F5.2 arcsec DEs Arcsecond of declination (J2000)
54- 63 F10.6 deg RAdeg Right ascension in decimal degrees (J2000)
65- 74 F10.6 deg DEdeg Declination in decimal degrees (J2000)
76- 80 A5 --- SpT Spectral type
82 I1 --- r_SpT [1/7]? Reference for spectral type (1)
84- 88 F5.3 arcsec Sep [0.004/4.8]? Separataion
90- 92 A3 --- r_Sep Reference for multiplicity (2)
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Note (1): References for spectral types are as follows:
1 = Cieza et al. (2010ApJ...712..925C 2010ApJ...712..925C);
2 = Erickson et al. (2011AJ....142..140E 2011AJ....142..140E);
3 = Wilking et al. (2005AJ....130.1733W 2005AJ....130.1733W);
4 = Manara et al. (2015A&A...579A..66M 2015A&A...579A..66M);
5 = McClure et al. (2010ApJS..188...75M 2010ApJS..188...75M);
6 = Cieza et al. (2007, J/ApJ/667/308);
7 = Luhman et al. (1999ApJ...525..440L 1999ApJ...525..440L).
Note (2): References for multiplicity are as follows:
1 = Ruiz-Rodriguez et al. (2016MNRAS.463.3829R 2016MNRAS.463.3829R);
2 = Cieza et al. (2010, J/ApJ/712/925);
3 = Ratzka et al. (2005A&A...437..611R 2005A&A...437..611R);
4 = Loinard et al. (2008ApJ...675L..29L 2008ApJ...675L..29L);
5 = This work;
6 = Kohn et al. (2016ApJ...820....2K 2016ApJ...820....2K).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq [1/147] Running sequence number
5- 11 F7.3 mJy FJ [0.05/926] 2MASS J-band flux
13- 18 F6.3 mJy e_FJ [0/18] FJ uncertainty
20- 27 F8.3 mJy FH [0.08/1840] 2MASS H-band flux
29- 34 F6.3 mJy e_FH [0/76.4] FH uncertainty
36- 43 F8.3 mJy FKs [0.6/2150] 2MASS Ks-band flux
45- 50 F6.3 mJy e_FKs [0.07/35.7] FKs uncertainty
52- 58 F7.2 mJy F3.6 [0.8/2220] Spitzer/IRAC 3.6um flux
60- 65 F6.2 mJy e_F3.6 [0.04/202] F3.6 uncertainty
67- 73 F7.2 mJy F4.5 [0.97/2330] Spitzer/IRAC 4.5um flux
75- 80 F6.2 mJy e_F4.5 [0.05/220] F4.5 uncertainty
82- 88 F7.2 mJy F5.8 [0.97/2700] Spitzer/IRAC 5.8um flux
90- 95 F6.2 mJy e_F5.8 [0.08/175] F5.8 uncertainty
97-103 F7.2 mJy F8.0 [0.63/3140] Spitzer/IRAC 8.0um flux
105-110 F6.2 mJy e_F8.0 [0.06/212] F8.0 uncertainty
112-117 F6.1 mJy F24 [6/4360] Spitzer/MIPS 24um flux
119-123 F5.1 mJy e_F24 [0.6/419] F24 uncertainty
125-131 F7.1 mJy F70 [/12200]?=0 Spitzer/MIPS 70um flux
133-138 F6.1 mJy e_F70 [/1260]?=0 F70 uncertainty
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Cycle [ODISEA_C4] ODISEA_C4: data obtained
in ALMA Cycle-4
10 A1 --- --- [_]
11- 13 I3 --- Seq [1/147] Corresponding target in Table 1
14 A1 --- m_Seq [A-C] Component number on Seq
16- 17 I2 h RAh [16]? Hour of right ascension (J2000)
19- 20 I2 min RAm [21/39]? Minute of right ascension (J2000)
22- 27 F6.3 s RAs ? Second of right ascension (J2000)
29 A1 --- DE- [-] Sign of declination (J2000)
30- 31 I2 deg DEd [22/25]? Degree of declination (J2000)
33- 34 I2 arcmin DEm ? Arcminute of declination (J2000)
36- 40 F5.2 arcsec DEs ? Arcsecond of declination (J2000)
42- 47 F6.2 mJy F1.3 [-0.24/361.2] ALMA 1.3mm flux
49- 52 F4.2 mJy e_F1.3 [0.1/1.22] F1.3 uncertainty
54- 59 F6.1 mas amaj [103/1303.2]? Major axis (2)
61- 64 F4.1 mas e_amaj [0.5/55]? amaj uncertainty
66- 71 F6.1 mas bmin [39/1047]? Minor axis (2)
73- 76 F4.1 mas e_bmin [0.1/88]? bmin uncertainty
78- 82 F5.1 deg PA [-32/175]? Position angle
84- 87 F4.1 deg e_PA [0/58]? PA uncertainty
89 A1 --- f_Seq [nu] Flag on Seq (1)
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Note (1): Flag as follows:
n = Sources with no RA and Dec information which have not been
detected by our ALMA observations (27 occurrences).
u = Sources with position information but no size information which
have been detected but remain unresolved (73 occurrences).
Note (2): The major and minor axis information correspond to FWHM values.
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History:
From electronic version of the journal
References:
Williams et al. Paper II. 2019ApJ...875L...9W 2019ApJ...875L...9W Cat. J/ApJ/875/L9
(End) Emmanuelle Perret [CDS] 11-Sep-2020