2020AJ....159..251D

Query : 2020AJ....159..251D

2020AJ....159..251D - Astron. J., 159, 251-251 (2020/June-0)

The Gemini Planet Imager view of the HD 32297 debris disk.

DUCHENE G., RICE M., HOM J., ZALESKY J., ESPOSITO T.M., MILLAR-BLANCHAER M.A., REN B., KALAS P., FITZGERALD M.P., ARRIAGA P., BRUZZONE S., BULGER J., CHEN C.H., CHIANG E., COTTEN T., CZEKALA I., DE ROSA R.J., DONG R., DRAPER Z.H., FOLLETTE K.B., GRAHAM J.R., HUNG L.-W., LOPEZ R., MACINTOSH B., MATTHEWS B.C., MAZOYER J., METCHEV S., PATIENCE J., PERRIN M.D., RAMEAU J., SONG I., STAHL K., WANG J., WOLFF S., ZUCKERMAN B., AMMONS S.M., BAILEY V.P., BARMAN T., CHILCOTE J., DOYON R., GERARD B.L., GOODSELL S.J., GREENBAUM A.Z., HIBON P., INGRAHAM P., KONOPACKY Q., MAIRE J., MARCHIS F., MARLEY M.S., MAROIS C., NIELSEN E.L., OPPENHEIMER R., PALMER D., POYNEER L., PUEYO L., RAJAN A., RANTAKYRO F.T., RUFFIO J.-B., SAVRANSKY D., SCHNEIDER A.C., SIVARAMAKRISHNAN A., SOUMMER R., THOMAS S. and WARD-DUONG K.

Abstract (from CDS):

We present new H-band scattered light images of the HD 32297 edge-on debris disk obtained with the Gemini Planet Imager. The disk is detected in total and polarized intensity down to a projected angular separation of 0.''15, or 20 au. On the other hand, the large-scale swept-back halo remains undetected, likely a consequence of its markedly blue color relative to the parent body belt. We analyze the curvature of the disk spine and estimate a radius of ≃100 au for the parent body belt, smaller than past scattered light studies but consistent with thermal emission maps of the system. We employ three different flux-preserving post-processing methods to suppress the residual starlight and evaluate the surface brightness and polarization profile along the disk spine. Unlike past studies of the system, our high-fidelity images reveal the disk to be highly symmetric and devoid of morphological and surface brightness perturbations. We find the dust scattering properties of the system to be consistent with those observed in other debris disks, with the exception of HR 4796. Finally, we find no direct evidence for the presence of a planetary-mass object in the system.

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

Journal keyword(s): Debris disks - Circumstellar dust

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 15115 PM* 02 26 16.2457848552 +06 17 33.186453252   7.15 6.80   6.33 F4IV 225 0
2 HD 32297 * 05 02 27.4358754192 +07 27 39.678553260   8.32 8.14     A0V 234 0
3 HD 35841 * 05 26 36.5868254712 -22 29 23.735043744   9.37 8.90     F3V 54 0
4 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
5 SAO 98614 PM* 09 30 34.9989564504 +10 35 59.818900740       8.2   ~ 44 1
6 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
7 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0
8 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0

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