JWST/NIRCam Imaging of Young Stellar Objects. I. Constraints on Planets Exterior to the Spiral Disk Around MWC 758

被引：2

作者：

Wagner, Kevin ^{[1
]}

Leisenring, Jarron ^{[1
]}

Cugno, Gabriele ^{[2
]}

Mullin, Camryn ^{[3
]}

Dong, Ruobing ^{[3
]}

Wolff, Schuyler G. ^{[1
]}

Greene, Thomas ^{[4
]}

Johnstone, Doug ^{[3
,5
]}

Meyer, Michael R. ^{[2
]}

Beichman, Charles ^{[6
]}

Boyer, Martha ^{[7
]}

Horner, Scott ^{[4
]}

Hodapp, Klaus ^{[8
]}

Kelly, Doug ^{[1
]}

McCarthy, Don ^{[1
]}

Roellig, Tom ^{[4
]}

Rieke, George ^{[1
]}

Rieke, Marcia ^{[1
]}

Sitko, Michael ^{[9
]}

Stansberry, John ^{[7
]}

Young, Erick ^{[10
]}

机构：

[1] Univ Arizona, Dept Astron & Steward Observ, Tucson, AZ 85721 USA

[2] Univ Michigan, Dept Astron, Ann Arbor, MI USA

[3] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada

[4] NASA Ames Res Ctr, Ames Ctr Exoplanet Studies ACES, Moffett Field, CA USA

[5] NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada

[6] NASA Exoplanet Sci Inst, CALTECH, Jet Prop Lab, Pasadena, CA USA

[7] Space Telescope Sci Inst, Baltimore, MD USA

[8] Univ Hawaii, Inst Astron, Honolulu, HI USA

[9] Space Sci Inst, Boulder, CO USA

[10] Univ Space Res Assoc, Washington, DC USA

来源：

ASTRONOMICAL JOURNAL | 2024年 / 167卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

GIANT PLANETS; CIRCUMPLANETARY DISCS; TRANSITION DISK; FORMING PLANETS; MASS; ARMS; OBSERVABILITY; LUMINOSITY; ACCRETION; DISCOVERY;

D O I：

10.3847/1538-3881/ad11d5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

MWC 758 is a young star hosting a spiral protoplanetary disk. The spirals are likely companion-driven, and two previously identified candidate companions have been identified-one at the end the Southern spiral arm at similar to 0.'' 6, and one interior to the gap at similar to 0.'' 1. With JWST/NIRCam, we provide new images of the disk and constraints on planets exterior to similar to 1 ''. We detect the two-armed spiral disk, a known background star, and a spatially resolved background galaxy, but no clear companions. The candidates that have been reported are at separations that are not probed by our data with sensitivity sufficient to detect them-nevertheless, these observations place new limits on companions down to similar to 2 M Jup at similar to 150 au and similar to 0.5 M Jup at greater than or similar to 600 au. Owing to the unprecedented sensitivity of JWST and youth of the target, these are among the deepest mass-detection limits yet obtained through direct imaging observations, and provide new insights into the system's dynamical nature.

引用

页数：10

共 11 条

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Cugno, Gabriele
Leisenring, Jarron
Wagner, Kevin R.
Mullin, Camryn
Dong, Roubing
Greene, Thomas
Johnstone, Doug
Meyer, Michael R.
Wolff, Schuyler G.
Beichman, Charles
Boyer, Martha
Horner, Scott
Hodapp, Klaus
Kelly, Doug
McCarthy, Don
Roellig, Thomas
Rieke, George
Rieke, Marcia
Stansberry, John
Young, Erick
ASTRONOMICAL JOURNAL, 2024, 167 (04):
[2] JWST/NIRCam Imaging of Young Stellar Objects. III. Detailed Imaging of the Nebular Environment around the HL Tau Disk
Mullin, Camryn
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ASTRONOMICAL JOURNAL, 2024, 167 (04):
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