Online Material

Figure 2: Nançay 21-cm line pencil beam maps obtained for 10 LSB Giant galaxies in our sample. Each map was obtained along an E-W line, centered at the optical center of the galaxy. The panels for each galaxy show the spectra obtained at positions offset by multiples of one half beamwidth ($\sim$2') from the galaxy center. Axes are flux density, in millijanskys, and velocity in kms-1

Figure 2: continued

   

Table 3: Results from mapping observations

Ident.	Postion	rms	$S_{\rm HI}$	$V_{\rm c}$
		mJy	Jykm s-1	kms-1
UGC 1752	2'W	3.00	2.42	17858
	C	2.45	4.72	17846
	2'E	4.65	1.84a	18028
UGC 2936	4'W	2.55	$\le$0.67
	2'W	3.55	5.99	3797
	C	2.76	9.83	3812
	2'E	2.56	4.29	3807
	4'E	2.31	$\le$0.29
UGC 3140	6'W	2.59	0.74	4596
	4'W	1.98	0.99	4662
	2'W	2.28	6.33	4618
	C	2.32	10.60	4626
	2'E	3.32	6.09	4628
	4'E	3.44	1.40	4632
	6'E	2.91	$\le$0.27
NGC 2770	6'W	3.59	1.39	1908
	4'W	3.38	4.08	1966
	2'W	4.00	16.16	1950
	C	2.56	28.50	1948
	2'E	3.46	15.58	1930
	4'E	2.86	3.82	1922
	6'E	4.15	1.91	2022
F568-6	2'W	2.88	2.27	13825
	C	3.36	4.56	13812
	2'E	2.94	1.20	13948
UGC 6614	6'W	2.02	$\le$0.15
	4'W	2.95	1.73	6437
	2'W	3.06	10.28	6368
	C	2.00	10.39	6347
	2'E	3.04	5.99	6338
	4'E	2.09	1.36	6329
	6'E	1.79	0.80	6355
Malin 1	2'W	1.37	0.89	24750
	C	2.08	1.63	24774
	2'E	2.08	0.96	24794
UGC 9024	4'W	2.63	1.08	1293
	2'W	2.76	6.04	2323
	C	3.30	9.98	2323
	2'E	2.48	4.76	2322
	4'E	2.40	0.96	2372
F533-3	2'W	2.33	1.45	12681
	C	1.88	2.01	12655
	2'E	2.94	$\le$1.09
PGC 71626	4'W	2.56	0.72	10037
	2'W	2.38	1.70	10013
	C	2.51	2.51	10018
	2'E	2.32	1.78	10015
	4'E	3.22	$\le$0.39
a Three out of four scans of UGC 1752 at the 2'E position were obtained with
a band-limiting filter not optimized for the redshifted frequency of the source.
As a result, the observed integrated flux at this position is diminished due
to response deterioration near the edge of the filter.

   

Table 5: Comparison of published H I line data with new measurements

Ident.	$V_{\rm HI}$	$W_{\rm 50,c}$	$W_{\rm 20,c}$	$S_{\rm HI}$	Tel.	Ref.
	kms-1	kms-1	kms-1	Jy kms-1
UGC 1752	17836	384		3.93	A	GH89
	17861	364	398	4.97	N	New
UGC 2936	3809		490	8.36	A	He83
	3823		490	8.4	A	HG84
	3816		513	11.7	G	TC88
	3817	493	499	9.0	A	S95
	3811	484		13.29	A	H99
	3813		500	13.6	V	P99
	3811	461	488	11.20	N	New
UGC 3140	4650				G	S78
	4630	161	228	12.08	N	Bt82
	4622	125	148	12.30	J	SD88
	4623	118	143	13.35	N	New
NGC 2770	1953	330	347	33.26	G	FT81
	1950	334	357	37.84	J	SD88
	1944	327		24.10	A	C93
	1948	340	373	33.88	W	RA96
		324		35.32	A	H97
	1947	319	343	36.90	N	New
F568-6	13827	386		3.48	A	S92
	13835		392	4.4	V	P97
	13829	374	394	4.10	N	New
UGC 6614	6351	244	278	7.08	A	Bo85a
	6358	236	286	9.56	A	HR89
	6353		287	15.0	V	P97
	6351	248	277	15.79	N	New
Malin-1	24750		341	3.5	A	Bo87
	24745	315	340	4.6	B	IBpc
	24705	295	355	2.5	A	IBpc
	24755		322	2.5	V	P97
	24784	269	308	1.68	N	New
PGC 45080	12264				A	S95
	12339	267	296	1.53	N	New
UGC 9024	2285					Bo85b
	2326	114	128	8.7	A	L87
	2323	117		9.3	A	H97
	2323	115	131	8.4	N	T98
	2321	117	126	11.38	N	New
F530-1	14339	488		1.7	A	S92
	14335	460	467	2.01	N	New
F533-3	12660	406	430	2.5	A	GH89
	12659	398		2.2	A	S92
	12670	367	375	2.41	N	New
NGC 7589	8938	356	363		A	S95
	8925		402	2.7	V	P97
	8866	345:	395:	2.90	N	New
PGC 71626	10022	91	118	2.6	N	T98
	10016	83	115	3.86	N	New

   

Table 5: continued

Bo85a	Bothun et al. (1985a)	Bo85b	Bothun et al. (1985b)	Bo87	Bothun et al. (1987)
Bt82	Bottinelli et al. (1982)	C93	Chengalur et al. (1993)	FT81	Fisher & Tully (1981)
GH89	Giovanelli & Haynes (1989)	HG84	Haynes & Giovanelli (1984)	H97	Haynes et al. (1997)
H99	Haynes et al. (1999)	He83	Hewitt et al. (1983)	Hu83	Huchra et al. (1983)
HR89	Huchtmeier & Richter (1989)	IBpc	Impey & Bothun (1989), see HR89	L87	Lewis (1987)
New	This work	P97	Pickering et al. (1997)	P99	Pickering et al. (1999)
RA96	Rhee & van Albada (1996)	S92	Schombert et al. (1992)	S78	Shostak (1978)
S95	Sprayberry et al. (1995b)	SD88	Staveley-Smith & Davies (1988)	T98	Theureau et al. (1998)
TC88	Tifft & Cocke (1988)
A	Arecibo 305 m	B	Green Bank 43 m	E	Effelsberg 100 m
G	Green Bank 91 m	J	Jodrell Bank 64 m	N	Nançay 94 m equiv
V	VLA	W	Westerbork

 

Table 6: Optical data from the literature

Ident.	$V_{\rm opt}$	$B_{\rm tot}$	$\mu(0)$	$h_{\rm r}$	M	Ref.
	kms-1	mag	mag ''-2	kpc	mag
UGC 568	13197	14.76	23.0	17.1	-21.53	S95
	13198	14.9	19.9		-21.42	I96
UGC 1752		15.5a	22.7	20.5	-21.38	K93
PGC 135657	12701	15.47	22.6	11.1	-20.74	S95
	12701	15.3	20.9		-20.92	I96
UGC 2936		13.97	22.23	9.24	-19.58	S95
	4065	15.1	22.1		-18.42	I96
	3822		20.3b	8.4	-21.1b	P99
UGC 3140		13.34	20.9	3.9	-20.61	dJ96
		13.4a	22.8	9.8	-20.55	K93
NGC 2770		12.94	20.8	13.0	-19.09	K85
PGC 135754	21335	16.40	22.5	11.2	-20.99	S95
	21335	16.1	21.0		-21.22	I96
F568-6		14.57	23.2	21.0	-21.79	MB94
			22.1b	18.3	-23.6b	P97
UGC 6614			22.9b	13.6	-22.3b	P97
		14.43	24.3	15.8	-20.29	MB94
		14.6a	22.3	9.1	-20.04	K93
Malin-1			26.0c	82.0	-22.9c	P97
			26.4	73.2		S93
			25.5c	73.2	-23.12	IB89
PGC 45080		17.48	22.8	6.45	-18.65	S95
	11674	17.0	22.4		-19.12	I96
UGC 9024		14.90	24.1	4.3	-17.58	dJ96
		14.74	24.4	7.4	-18.46	MB94
F530-1		16.3a	21.8	12.2	-20.11	K93
F533-3		15.7a	23.5	26.5	-20.44	K93
NGC 7589			23.3b	12.6	-21.9b	P97
PGC 71626	9520	14.48	22.1	12.6	-21.08	S95
	9521	14.1	20.0		-21.42	I96
aMeasurement within 26 mag arcsec-2 isophote.
bMeasurement in R band.
cMeasurement in V band.

   

Table 6: continued

dJ96 de Jong (1996)	I96 Impey et al. (1996)
IB89 Impey & Bothun (1989)	K85 Kent (1985)
K93 Knezek (1993)	MB94 McGaugh & Bothun (1994)
S93 Sprayberry et al. (1993)	S95 Sprayberry et al. (1995b)
P97 Pickering et al. (1997)	P99 Pickering et al. (1999)