Small vs. large dust grains in transitional disks: do different cavity sizes indicate a planet? - SAO 206462 (HD 135344B) in polarized light with VLT/NACO

By A. Garufi, Sascha P. Quanz, H. Avenhaus, E. Buenzli, C. Dominik, F. Meru, M. Meyer, P. Pinilla, H. Schmid, S. Wolf. 2013

174 citations recorded by the source corpus.

Context. Transitional disks represent a short stage of the evolution of circumstellar material. Studies of dust grains in these objects can provide pivotal information on the mechanisms of planet formation. Dissimilarities in the spatial distribution of small (μm−size) and large (mm−size) dust grains have recently been pointed out. Aims. Constraints on the small dust grains can be obtained by imaging the distribution of scattered light at near-infrared wavelengths. We aim at resolving structures in the surface layer of transitional disks (with particular emphasis on the inner 10−50 AU), thus increasing the scarce sample of high-resolution images of these objects. Methods. We obtained VLT/NACO near-IR high-resolution polarimetric differential imaging observations of SAO 206462 (HD135344B). This technique allows one to image the polarized scattered light from the disk without any occulting mask and to

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/368e8dc097c765555fce1d9f2f718a1b6f33afab

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Citations in the corpus

OBSERVATIONAL SIGNATURES OF PLANETS IN PROTOPLANETARY DISKS: SPIRAL ARMS OBSERVED IN SCATTERED LIGHT IMAGING CAN BE INDUCED BY PLANETS (2015, background): “Recently, high angular resolution direct imaging observations at near-infrared (near-IR) wavelengths have found spiral-arm-like features in protoplanetary disks around young Herbig AeBe stars SAO 206462 (Muto et al. 2012; Garufi et al. 2013) and MWC 758 (Grady et al. 2013; Benisty et al. 2015).”
Gas density drops inside dust cavities of transitional disks around young stars observed with ALMA (2015, background): “Scatteredlight images show that there is small dust inside the millimeter dust cavity down to 30 AU for HD135344B (millimeter dust cavity is ∼46 AU) (Garufi et al. 2013).”
LARGE-SCALE ASYMMETRIES IN THE TRANSITIONAL DISKS OF SAO 206462 AND SR 21 (2014, unknown): “Recently, scattered light observations of the polarized intensity at near-IR wavelengths revealed spirallike structure in the outer disk of SAO 206462 (Muto et al. 2012; Garufi et al. 2013).”
On the diversity and statistical properties of protostellar discs (2018, background): “…21 jects and transition discs include: AB Aur (Hashimoto et al. 2011), MWC 758 (Grady et al. 2013; Benisty et al. 2015), SAO 206462 (Muto et al. 2012; Garufi et al. 2013; Stolker et al. 2016), HD 100546 (Boccaletti et al. 2013; Avenhaus et al. 2014; Currie et al. 2015; Garufi et al. 2016;…”
STRUCTURES IN THE PROTOPLANETARY DISK OF HD142527 SEEN IN POLARIZED SCATTERED LIGHT (2013, methodology): “The reduction parameters for HD142527, HD169142, and SAO206462 can be found in Table 4.”
Resolved gas cavities in transitional disks inferred from CO isotopologs with ALMA (2015, methodology): “A 30 AU gas cavity was also derived in van der Marel et al. (2015b) considering the inner radius of the small dust grains derived from the scattered-light emission (Garufi et al. 2013), but a δgas value as low as ∼10−4 underproduces the 12CO emission inside the cavity.”
Shadows and spirals in the protoplanetary disk HD 100453 (2016, unknown): “…(Wagner et al. 2015a, this work); AB Aur (Hashimoto et al. 2011); HD 142527 (Canovas et al. 2013; Avenhaus et al. 2014); SAO 206462 (Muto et al. 2012; Garufi et al. 2013; Stolker et al. 2016a); MWC 758 (Grady et al. 2013; Benisty et al. 2015), and HD 100546 (Ardila et al. 2007; Garufi et al. 2016).”
Observational Signatures of Planets in Protoplanetary Disks I: Gaps Opened by Single and Multiple Young Planets in Disks (2014, methodology): “3-2130 (Mayama et al. 2012; Zhang et al. 2014) and SAO 206462 (Andrews et al. 2011; Garufi et al. 2013).”