Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps

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Table 8

Mysterious objects and possibly related quasars.

Name	Panel in	z	Ref.	T	M_i	R_i		μ_αcosδ	μ_δ	N_e	pm
	Fig. 12				(mag)		(mag)	(mas/yr)	(mas/yr)

(a) Mysterious objects:
SDSS J010540.75−003313.9^a	(c)	1.179^b	1	...	− 26.49	1.19	0.18	8.1 ± 2.1	−4.1 ± 2.3	40	pmx?^d
SDSS J085502.20+280219.6	(f)	1.511		D	− 25.55	...	0.15	−8.1 ± 1.0	1.5 ± 2.0	13	pmx?^d
FBQS J105528.80+312411.3	(a)	0.497	1	F	− 25.13	1.16	0.45	−3.1 ± 2.7	−2.2 ± 3.5	7	no pm
SDSS J130941.35+112540.1^a	(h)	1.362^b	3	...	− 26.62	0.72	0.20	−2.2 ± 5.2	−1.2 ± 2.6	10	no pm
VPMS J134246.24+284027.5^a	(i)	1.300	4	...	− 25.36	0.89	0.12	3.7 ± 5.8	−0.5 ± 5.9	22	no pm
SDSS J145045.56+461504.2	(g)	1.894	3	D	− 26.48	1.17	0.30	3.5 ± 5.7	1.8 ± 1.8	6	no pm
SDSS J160827.08+075811.5	(e)	1.182^b		D	− 27.57	1.18	0.18	1.5 ± 1.2	1.6 ± 1.9	11	no pm
SDSS J161836.09+153313.5^a	(d)	1.358^b		...	− 26.02	1.22	0.10	1.4 ± 2.1	−9.0 ± 2.1	8	pmy?^d
SDSS J220445.27+003141.8	(b)	1.353	1	D	− 27.81	0.49	0.22	−1.6 ± 1.3	−1.5 ± 1.6	23	no pm

(b) Possibly related objects:
SDSS J073816.91+314437.0tablefootmarka	(q)	2.01	2	...	− 26.80	0.80	0.13	−0.1 ± 1.7	−0.6 ± 3.4	11	no pm
SDSS J075437.85+422115.3	(s)	1.964		C	−26.17	1.29	0.27	31.4 ± 6.2	27.3 ± 8.0	12	pm?^e
SDSS J091613.59+292106.2	(l)	1.143^b		D	−25.64	...	0.18	−0.4 ± 1.1	−3.4 ± 1.4	13	no pm
SDSS J091940.97+064459.9	(r)	1.351^b		A	−26.02	2.05	0.27	...	...	...	...
SDSS J101723.04+230322.1	(o)	1.794		A	−27.18	1.30	0.20	4.6 ± 2.6	0.8 ± 6.8	7	no pm
SDSS J110511.15+530806.5	(t)	1.936		D	−26.63	...	0.50	4.8 ± 2.6	−1.7 ± 2.4	6	no pm
SDSS J120337.91+153006.6	(n)	1.238^b		A	−26.62	0.55	0.12	...	...	...	...
SDSS J134951.93+382334.1	(j)	1.094^b		A	−25.20	1.12	0.30	2.4 ± 3.6	−9.3 ± 5.2	7	no pm
SDSS J151627.40+305219.7	(p)	1.846		D	−27.79	0.43	0.10	−1.8 ± 1.5	0.5 ± 2.0	11	no pm
SDSS J152438.79+415543.0	(m)	1.227^b		A	−26.00	1.01	0.22	−2.7 ± 6.4	−1.5 ± 6.8	14	no pm
SDSS J215950.30+124718.4	(k)	1.516		D	−26.39	...^c	0.50	−11.5 ± 2.3	2.0 ± 6.0	9	pmx?^d

Notes.

^(a)

Not in Table 3;

^(b)

redshift based on [O ii];

^(c)

not in FIRST survey area;

^(d)

“pmx?” and “pmy?” indicate small (~10 mas/yr) proper motion components μ_αcosδ or μ_δ respectively. These results are formally significant but doubtful, as caused by probably erroneous POSS1 positions.

^(e)

“pm?” indicates formally significant proper motions in both components that are likely caused by a faint object close to the line of sight.

References. (1) Hall et al. (2002); (2) Hall et al. (2004); (3) Plotkin et al. (2008); (4) Meusinger et al. (2005).

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