Protoplanetary and debris disks in the η Chamaeleontis Association - A submillimeter survey obtained with APEX/LABOCA observations

Open Access

Table 1

Summary of source properties and LABOCA measurements.

Source	SIMBAD name	SpT	π [mas]	μ_α [mas yr⁻¹]	µ_δ [mas yr⁻¹]	F_870µm [mJy]
Detections

J0844	V* EO Cha	M0	10.1867 ± 0.0106	−30.287 ± 0.015	26.927 ± 0.013	4.96 ± 0.83
J0843	V* ET Cha	M2	9.6756 ± 0.2249	−27.932 ± 0.28	29.149 ± 0.27	5.42 ± 0.83
RECX-5	V* EK Cha	M5	10.1522 ± 0.0138	−30.242 ± 0.018	26.862 ± 0.019	20.01 ± 2.45
RECX-6	V* EL Cha	M2	10.1933 ± 0.0156	−29.106 ± 0.02	27.014 ± 0.021	8.38 ± 0.54
RECX-8 ⁽¹⁾	RS Cha	A7V	10.137 ± 0.0213	−27.263 ± 0.032	28.179 ± 0.029	18.62 ± 2.63
RECX-9	V* EN Cha	M4	–	–	–	5.71 ± 1.29
RECX-11	V* EP Cha	K5	10.1198 ± 0.0111	−30.145 ± 0.015	26.801 ± 0.011	12.74 ± 1.68
J0801 ⁽²⁾	2MASS J08014860-8058052	M4.4	8.9432 ± 0.0233	−19.006 ± 0.031	28.879 ± 0.03	7.58 ± 0.86
J0820 ⁽²⁾	2MASS J08202975-8003259	M4.3	10.2685 ± 0.0229	−27.872 ± 0.028	29.282 ± 0.032	8.12 ± 1.1
RX_J1005 ⁽²⁾	RX J1005.3-7749	M1e	10.0257 ± 0.0129	−37.326 ± 0.016	14.656 ± 0.015	7.75 ± 0.56

Marginal	Detections

η Cha	* eta Cha	B8V	10.1679 ± 0.0665	−29.43 ± 0.18	26.831 ± 0.119	3.37 ± 1.86
J0841	V* ES Cha	M4	10.1205 ± 0.0247	−29.957 ± 0.034	28.036 ± 0.036	2.88 ± 0.97

Upper	limits

RECX-3	V* EH Cha	M3	10.1168 ± 0.0107	−28.442 ± 0.014	27.001 ± 0.016	< 1.65
RECX-4	V* EI Cha	K7	10.1366 ± 0.0121	−30.826 ± 0.016	26.006 ± 0.018	<3.03
RECX-7	V* EM Cha	K3	10.1278 ± 0.0118	−30.184 ± 0.014	27.576 ± 0.014	<4.02
HD 75505	HD 75505	A1V	10.2039 ± 0.0213	−30.646 ± 0.028	27.134 ± 0.031	<7.86
RECX-12	V* EQ Cha	M3	10.2837 ± 0.0354	−30.397 ± 0.045	26.256 ± 0.041	<2.01
RECX-16	2MASS J08440915-7833457	M5.5	10.0441 ± 0.0393	−29.844 ± 0.054	26.262 ± 0.049	<40.4
RECX-17	ECHA J0838.9-7916	M5	10.0827 ± 0.0363	−28.868 ± 0.044	27.035 ± 0.041	<9.10
RECX-18	ECHA J0836.2-7908	M5.5	9.9086 ± 0.05	−29.092 ± 0.059	27.871 ± 0.053	<29.8

Herschel

RECX1	V* EG Cha	K4Ve	10.1099 ± 0.0917	−29.62 ± 0.118	26.852 ± 0.103

Notes. Source names adopted in the paper and the corresponding SIMBAD database IDs are given in the first two columns, the spectral types in the third column, and parallaxes and proper motions from Gaia eDR3 are in Cols. 4–6. The last column contains the LABOCA-measured fluxes and upper limits. The error in the fluxes is the root mean square (rms) of the observation. The upper limits are computed as 3σ. ⁽¹⁾The detection of RECX-8 is contaminated by a local extended nebulosity highlighted by Planck between 30 and 217 GHz. For this reason, it is more appropriate to consider the emission from RECX-8 as an upper limit. ⁽²⁾Halo members from the work of Murphy et al. (2010).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.