Where is the warm H2? A search for H2 emission from disks around Herbig Ae/Be stars

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Table 1:

Astrophysical parameters of the sample stars.
Star	Sp.	$T_{\rm eff}$	$A_{\rm v}$	$v_{\rm rad}$ ^(a)	d	Disk	Evidence for
	Type	(K)	(mag)	(km s^-1)	(pc)	resolved	gas-rich
							environment
HD 142527	F6 IIIe	6300⁽¹⁾	1.49⁽¹⁾	-3.5⁽²⁾	140⁽³⁾	yes⁽⁴⁾
HD 169142	A8 Ve	8130⁽⁵⁾	0.37⁽⁶⁾	-3.0⁽⁷⁾	145⁽⁵⁾	yes⁽⁸⁾	yes⁽⁹⁾
HD 150193A	A1 Ve	9300⁽¹⁾	1.61⁽¹⁾	-6.0⁽¹⁰⁾	150⁽¹⁾	yes⁽¹¹⁾
HD 163296	A1 Ve	9300⁽¹⁾	0.25⁽¹⁾	-4.0⁽²⁾	122⁽¹⁾	yes⁽¹²⁾	yes⁽¹³⁾
HD 100546	B9 Vne	10470⁽¹⁾	0.25⁽¹⁾	+17⁽¹³⁾	103⁽¹⁾	yes⁽¹⁴⁾	yes⁽¹³⁾

Notes. ^(a) radial velocity of the star in the heliocentric rest frame.

References. ⁽¹⁾ van den Ancker et al. (1998); ⁽²⁾ SIMBAD database; ⁽³⁾ de Zeeuw et al. (1999); ⁽⁴⁾ Fukagawa et al. (2006); ⁽⁵⁾ Acke et al. (2005); ⁽⁶⁾ Malfait et al. (1998); ⁽⁷⁾ Dunkin et al. (1997); ⁽⁸⁾Kuhn et al. (2001); ⁽⁹⁾ Panic et al. (2008); ⁽¹⁰⁾ Reipurth et al. (1996); ⁽¹¹⁾ Fukagawa et al. (2003); ⁽¹²⁾ Grady et al. (2000); ⁽¹³⁾ Lecavelier des Etangs et al. (2003); ⁽¹⁴⁾ Augereau et al. (2001).

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