2020ApJ...900...36P


Query : 2020ApJ...900...36P

2020ApJ...900...36P - Astrophys. J., 900, 36-36 (2020/September-1)

High-resolution spectroscopic monitoring observations of FU Orionis-type object, V960 Mon.

PARK S., LEE J.-E., PYO T.-S., JAFFE D.T., MACE G.N., SUNG H.-I., LEE S.-G., KANG W., OH H.-I., YOON T.S., YOON S.-Y. and GREEN J.D.

Abstract (from CDS):

We present the results of high-resolution (R >= 30,000) optical and near-infrared (NIR) spectroscopic monitoring observations of an FU Orionis-type object (FUor), V960 Mon, which underwent an outburst in 2014 November. We have monitored this object with the Bohyunsan Optical Echelle Spectrograph and the Immersion GRating INfrared Spectrograph since 2014 December. Various features produced by a wind, disk, and outflow/jet were detected. The wind features varied over time and continually weakened after the outburst. We detected double-peaked line profiles in the optical and NIR, and the line widths tend to decrease with increasing wavelength, indicative of Keplerian disk rotation. The disk features in the optical and NIR spectra fit well with G-type and K-type stellar spectra convolved with a kernel to account for the maximum projected disk rotation velocities of about 40.3 ± 3.8 km s–1 and 36.3 ± 3.9 km s–1, respectively. We also report the detection of [S II] and H2 emission lines, which are jet/outflow tracers and rarely found in FUors.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): FU Orionis stars - High resolution spectroscopy

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 18474 * 02 59 49.7897133000 +47 13 14.567181096   6.348 5.485     G5:III:CN-3CH-2Hdel-1 104 0
2 HD 31411 * 04 55 58.3520951520 +05 23 56.485519116   6.520 6.485     A0V 50 0
3 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 779 1
4 HD 44391 s*r 06 22 47.8768782096 +27 59 12.034306176   9.07 7.68     K0Ib 51 0
5 HD 45137 * 06 25 46.5280322304 +02 16 18.035236920   6.48 6.51     A0V 48 0
6 HD 45380 * 06 26 44.8518087216 -07 30 42.985244628   6.29 6.33     B9V 50 0
7 HD 50931 * 06 55 34.6214787816 +08 19 27.447359016   6.305 6.258     A0V 41 0
8 LDN 1650 DNe 06 59.5 -04 54           ~ 10 0
9 V* V960 Mon Or* 06 59 31.5890411256 -04 05 27.765639744   16.11 14.94 13.92 12.67 ~ 40 1
10 HD 53205 * 07 04 20.1743071080 +01 29 18.565226592   6.58 6.57     B9IV/V 34 0
11 HD 56525 * 07 16 47.0615017896 -13 40 52.008655404   7.243 7.179     A0V 21 0
12 * 46 UMa PM* 10 55 44.3842839576 +33 30 24.944247000   6.123 5.034 9.7   K1III 84 0
13 V* V1515 Cyg Or* 20 23 48.0158573016 +42 12 25.781279076   15.26 13.39 12.03   G0/G2Ib 231 0
14 V* V2493 Cyg Or* 20 58 17.0280367392 +43 53 43.341681156   19.678 18.023 17.67 15.233 M4.6 110 0
15 V* V2494 Cyg Or* 20 58 21.0933404928 +52 29 27.683055312           ~ 44 0
16 EM* LkHA 190 Or* 20 58 53.7335347296 +44 15 28.388727720   14.26 12.33 12.13   F7/G3I/IIe 500 0
17 * 12 Peg s*r 21 46 04.3635268800 +22 56 55.964753592   6.622 5.266     K0IbHdel0.5 126 0
18 * 61 Peg * 23 15 46.2908754264 +28 14 52.431363636 7.820 7.350 6.500     G2II-III 32 0

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2023.06.09-23:46:23

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