On the nature of candidate luminous blue variables in M 33

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Volume 541 (May 2012)

A&A, 541 (2012) A146

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Table 1

Summary of WHT and Keck spectroscopic target list.

LGGS J#	Aliases	Classification	Telescope	V	Last observed

013242.26+302114.1	-	Iron star	WHT	17.44	2006 Sept^a
013324.62+302328.4	-	Iron star	WHT	19.58	2006 Sept^a
013350.12+304126.6	UIT212	Iron star	WHT, Keck	16.82	1993-5^b
013406.63+304147.8	UIT 301	Iron star	WHT	16.08	2001^c
	[HS80] B416

013357.73+301714.2^∗	-	B hypergiant	WHT	17.39	2006 Sept^a
013416.44+303120.8^∗	-	B hypergiant	WHT	17.10	2006 Sept^a
013422.91+304411.0^∗	-	B hypergiant	WHT	17.22	2006 Sept^a
013424.78+303306.6^∗	-	B hypergiant	WHT	16.84	2006 Sept^a
013429.64+303732.1^∗	-	B hypergiant	WHT	17.10	2006 Sept^a

013339.52+304540.5	B517	P Cyg LBVc	WHT	17.50	2006 Sept^a
013341.28+302237.2^∗	[HS80] 110-A	P Cyg LBVc	WHT	16.28	2006 Sept^a
013416.07+303642.1^∗	-	P Cyg LBVc	WHT	17.95	2010 Oct^d

013309.14+303954.5	UIT045	Ofpe/WNL	WHT	17.91	1993-5^b
013327.26+303909.1	UIT104	Ofpe/WNL	WHT	17.95	1993-5^b
013509.73+304157.3^∗	Romano’s star	Ofpe/WNL	WHT	18.04	2010 Oct^d

013349.23+303809.1^∗	Var B	LBV	Keck	16.21	2005^e
013335.14+303600.4^∗	Var C	LBV	WHT, Keck	16.43	2003-5^e
013416.10+303344.9	UIT 341	LBVc	WHT	17.12	1993-5^b^f
	[HS80] B526

Notes. Summary of of our WHT and Keck target stars, common aliases, classification following the ammended scheme of Ma07 (Sect. 3; noting that Romano’s star should be now be considered a bona fide LBV), LGGS V band magnitude (observations made between 2000 November–2003 February) and date of most recent spectroscopic observations in the ~4000−5000 Å window. Stars for which contemporaneous historical observations of the ~6000−7000 Å window are also available in the literature are indicated by an asterix.

^(a)

Ma07,

^(b)

Massey et al. (1996),

^(c)

Fabrika et al. (2005),

^(d)

Neugent & Massey (2011),

^(e)

Viotti et al. (2006),

^(f)

Monteverde et al. (1996).

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