Hubble Space Telescope ACS Coronagraphic Imaging of the Circumstellar Disk around HD 141569A

By M. Clampin, J. Krist, D. Ardila, D. Golimowski, G. Hartig, H. C. Ford, G. Illingworth, F. Bartko, N. Benı́tez, J. Blakeslee and 24 more. 2003

151 citations recorded by the source corpus.

Multicolor coronagraphic images of the circumstellar disk around HD 141569A have been obtained with the Hubble Space Telescope Advanced Camera for Surveys. The B, V, and I images show that the disk's previously described multiple-ring structure is actually a continuous distribution of dust with a tightly wound spiral structure. Extending from the disk are two, more open spiral arms, one of which appears to reach the nearby binary star HD 141569BC. Diffuse dust is seen up to 1200 AU from HD 141569A. Although planets may exist in the inner region of the disk, tidal interaction with HD 141569BC seems more likely to be the cause of these phenomena. The disk appears redder than the star (B-V = 0.21 and V-I = 0.25), and its color is spatially uniform. A scattering asymmetry factor of g = 0.25–0.35 is derived. The azimuthal density distribution is asymmetric, varying by a factor of ∼3 at some radii.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/0c442adf39274d98a9cbdf454ea6ac6ab6beb531

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In Astronomy and Astrophysics

1. M. C. Wyatt
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6. Eric Mamajek
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Citations in the corpus

• Young Stars Near the Sun (2004, methodology): “HD 141569 In contrast to TW Hya’s rather bland disk, the 500 AU radius disk around the closest Herbig Ae star HD 141569 displays a variety of structure that has been imaged in scattered light with three coronagraphic cameras on HST: NICMOS at 1.1 and 1.6 µm (Augereau et al. 1999, Weinberger et al. 1”
• Steady State Evolution of Debris Disks around A Stars (2007, methodology): “…Pictoris) and HD141569, the dust is observed to span a large range of radii: from tens of AU out to 1000s of AU for β Pictoris with a density distribution that peaks at 75 AU (Kalas & Jewitt 1995; Telesco et al. 2005), and from ∼ 10 to 1200 AU for HD141569 (Fisher et al. 2000; Clampin et al. 2003).”
• Spiral Structure in the Circumstellar Disk around AB Aurigae (2004, background): “…the disk morphology even for nearby star-forming regions at pc. Recent high-d ∼ 150 resolution imaging studies with theHubble Space Telescope (HST ) revealed various disk morphologies around young stellar objects with several million years of age (e.g., Clampin et al. 2003; Grady et al. 2001).”
• Gas Flow across Gaps in Protoplanetary Disks (2005, background): “Recent studies of young stars such as CoKu Tau/4 (D’Alessio et al. 2005), TW Hya (Calvet et al. 2002), KH 15D (Herbst et al. 2002), HR 4796A (Schneider et al. 1999), and HD 141569A (Clampin et al. 2003) suggest the presence of inner holes in circumstellar disks.”
• PROBING FOR EXOPLANETS HIDING IN DUSTY DEBRIS DISKS: DISK IMAGING, CHARACTERIZATION, AND EXPLORATION WITH HST/STIS MULTI-ROLL CORONAGRAPHY (2014, methodology): “…(Schneider et al. 2009; Kalas et al. 2005, 2008), warps (Heap et al. 2000), clumps (Holland et al. 1998; Greaves et al. 1998; Greaves 2012), non-coplanar features (Golimowski et al. 2006), spirality (Clampin et al. 2003), and brightness asymmetries (Telesco et al. 2000; Kalas et al. 2007a, 2007b).”