Evidence for a bloated massive protostar in IRAS 20126+4104

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Table 1

Peak positions and flux densities obtained from the NEOWISE data (unless otherwise specified).

#^a	date (yy/mm/dd)	MJD (days)	∆α^b (arcsec)	∆δ^b (arcsec)	$S_{ν}^{B}$ $Mathematical equation: $S_\nu ^B$$ (mJy)	$S_{ν}^{R}$ $Mathematical equation: $S_\nu ^R$$ (mJy)
…	05/06/13^c	53 534	0.34±0.26	0.86±0.19	408±20	367±18
…	10/05/15^d	55 331	3.01±0.33	–0.74±0.22	143±6	221±9
…	10/11/10^d	55 510	2.35±0.46	–0.47±0.30	161±8	210±12
1	14/05/16	56 793	–0.90±0.28	1.38±0.19	245±12	169±7
2	14/11/13	56 974	0.52±0.28	0.79±0.19	232±13	205±11
3	15/05/16	57 158	0.37±0.27	0.59±0.18	227±12	210±10
4	15/11/08	57 334	1.85±0.29	–0.09±0.19	181±10	217±12
5	16/05/14	57 522	2.07±0.32	–0.42±0.21	157±7	208±10
6	16/11/01	57 693	2.73±0.37	–0.59±0.24	138±7	197±11
7	17/05/13	57 886	1.94±0.35	–0.36±0.23	152±7	194±8
8	17/10/29	58 055	1.77±0.39	–0.02±0.25	160±7	185±8
9	18/05/15	58 253	–0.12±0.34	0.88±0.22	204±10	170±7
10	18/10/26	58 417	–0.23±0.31	1.09±0.20	222±17	171±11
11	19/05/14	58 617	–1.34±0.30	1.61±0.21	236±13	149±7
12	19/10/25	58 781	–0.87±0.27	1.53±0.18	237±14	155±8
13	20/05/14	58 983	–1.54±0.28	1.70±0.19	241±10	144±5
14	20/10/24	59 146	–0.53±0.26	1.30±0.17	244±13	172±9
15	21/05/14	59 348	–0.67±0.28	1.23±0.18	254±15	185±9
16	21/10/25	59 512	0.22±0.28	0.89±0.19	233±15	196±12
17	22/05/14	59 713	0.07±0.29	0.75±0.19	231±12	201±10
18	22/10/24	59 876	1.28±0.27	0.25±0.18	219±12	233±12
19	23/05/15	60 079	1.38±0.28	–0.04±0.18	199±9	229±10
20	23/10/25	60 242	2.50±0.33	–0.40±0.21	157±7	211±9
21	24/05/14	60 444	1.33±0.34	0.04±0.21	178±13	200±14

^aEpoch number as indicated in Fig. 2. ^bOffsets with respect to the reference position α(J2000)=20^h14^m26.s0364, δ(J2000)=41°13′32.″516. ^cSpitzer/IRAC data at 3.6 µm from Qiu et al. 2008. ^dALLWISE data.

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