2020A&A...639L...1M


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.25CET08:44:47

2020A&A...639L...1M - Astronomy and Astrophysics, volume 639, L1-1 (2020/7-1)

Ongoing flyby in the young multiple system UX Tauri.

MENARD F., CUELLO N., GINSKI C., VAN DER PLAS G., VILLENAVE M., GONZALEZ J.-F., PINTE C., BENISTY M., BOCCALETTI A., PRICE D.J., BOEHLER Y., CHRIPKO S., DE BOER J., DOMINIK C., GARUFI A., GRATTON R., HAGELBERG J., HENNING T., LANGLOIS M., MAIRE A.L., PINILLA P., RUANE G.J., SCHMID H.M., VAN HOLSTEIN R.G., VIGAN A., ZURLO A., HUBIN N., PAVLOV A., ROCHAT S., SAUVAGE J.-F. and STADLER E.

Abstract (from CDS):

We present observations of the young multiple system UX Tauri to look for circumstellar disks and for signs of dynamical interactions. We obtained SPHERE/IRDIS deep differential polarization images in the J and H bands. We also used ALMA archival CO data. Large extended spirals are well detected in scattered light coming out of the disk of UX Tau A. The southern spiral forms a bridge between UX Tau A and C. These spirals, including the bridge connecting the two stars, all have a CO (3-2) counterpart seen by ALMA. The disk of UX Tau C is detected in scattered light. It is much smaller than the disk of UX Tau A and has a major axis along a different position angle, suggesting a misalignment. We performedPHANTOM SPH hydrodynamical models to interpret the data. The scattered light spirals, CO emission spirals and velocity patterns of the rotating disks, and the compactness of the disk of UX Tau C all point to a scenario in which UX Tau A has been perturbed very recently (∼1000 years) by the close passage of UX Tau C.

Abstract Copyright: © F. Ménard et al. 2020

Journal keyword(s): protoplanetary disks - circumstellar matter - stars: pre-main sequence - binaries: general

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* UX Tau B TT* 04 30 03.5778750604 +18 13 49.477040697       13.33   M1Ve 62 0
2 V* UX Tau C TT* 04 30 03.9885439206 +18 13 46.786269979     18.0     M5 34 0
3 V* UX Tau A TT* 04 30 03.9931880444 +18 13 49.476948664   12.92 11.15     K2Ve 328 0
4 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 316 0
5 V* DO Tau Or* 04 38 28.5882167490 +26 10 49.472067634 12.78 13.44 12.30 13.01   M1Ve 319 1
6 V* HV Tau Or* 04 38 35.2903493114 +26 10 38.646251388           M1Ve 116 0
7 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3544 0
8 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 717 0
9 HD 142527 Ae* 15 56 41.8888096574 -42 19 23.245384377   9.04 8.34     F6III 480 1
10 V* V866 Sco Or* 16 11 31.345632 -18 38 25.96200   13.98 12.63 12.81   K0e+K5e 247 0

    Equat.    Gal    SGal    Ecl

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2020.10.25-08:44:47

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