2001A&A...366..387L

Query : 2001A&A...366..387L

2001A&A...366..387L - Astronomy and Astrophysics, volume 366, 387-394 (2001/2-1)

Slit spectroscopy of nine new (z>3) southern QSOs: damped Lyα and Lyman-limit systems.

LOPEZ S., MAZA J., MASEGOSA J. and MARQUEZ I.

Abstract (from CDS):

We present FWHM=5 to 8Å optical spectra of nine previously unknown quasars (QSOs) drawn from the Calan/Tololo Survey. We have chosen this sample based on QSO redshift, z>3, and the presence of either candidate damped Lyα (DLA) or Lyman-limit (LL) systems in their spectra. The spectra show at least 9 DLA systems at redshifts 2.25<z<3.26, which are identified by the shape and strength of the HI-Lyα absorption line, by the presence of Lyβ and low-ionization metal lines at the same redshift, and - in most cases - by the observed Lyman-break. We thus provide the astronomical community with new interesting targets for high resolution spectroscopy on large telescopes. We describe all the spectra with emphasis on the most outstanding DLA and LL systems found.

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Journal keyword(s): cosmology: observations - quasars: individual: CTQ 247, CTQ 298, CTQ 314, CTQ 325, CTQ 408, CTQ 460, CTQ 476, CTQ 1005, CTQ 1061 - quasars: general - absorption lines

Nomenclature: Table 1: CTQ NNNN (Nos 1005, 1061) added. Table 2: [LMM2001] QSO J0041-4936 abs N.NNNN N=16 = [LMM2001] CTQ 408 NN (Nos 1-20). Table 3: [LMM2001] QSO J0407-4410 abs N.NNNN N=22 = [LMM2001] CTQ 247 NN (Nos 1-27). Table 4: [LMM2001] QSO J1048-1637 abs N.NNNN N=2 = [LMM2001] CTQ 1061 N (Nos 1-2). Table 5: [LMM2001] QSO J0137-2707 abs N.NNNN N=5 = [LMM2001] CTQ 1005 N (Nos 1-5). Table 6: [LMM2001] QSO J1039-2313 abs N.NNNN N=10 = [LMM2001] CTQ 460 NN (Nos 1-10). Table 7: [LMM2001] QSO J1235-3050 abs N.NNNN N=7 = [LMM2001] CTQ 314 N (Nos 1-7). Table 8: [LMM2001] QSO J1456-1938 abs N.NNNN N=4 = [LMM2001] CTQ 476 N (Nos 1-5). Table 9: [LMM2001] QSO J1342-1355 abs N.NNNN N=3 = [LMM2001] CTQ 325 N (Nos 1-4). Table 10: [LMM2001] QSO J1113-1533 abs N.NNNN N=3 = [LMM2001] CTQ 298 N (Nos 1-3).

Simbad objects: 9

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Number of rows : 9

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Sp type	#ref 1850 - 2023
1	QSO J0041-4936	QSO	00 41 31.4401078248	-49 36 11.686921488	17.9	17.9	~	18
2	QSO J0137-2707	QSO	01 37 54.5560896408	-27 07 36.616431864	18.6		~	21
3	QSO J0407-4410	QSO	04 07 18.0880236912	-44 10 13.983623724	17.6	17.6	~	96
4	QSO B1036-2257	QSO	10 39 09.5068714968	-23 13 26.396602392	18.0	18.0	~	43
5	QSO J1048-1637	QSO	10 48 56.8118879952	-16 37 09.280457184		17.70	~	8
6	QSO J1113-1533	QSO	11 13 50.6122921416	-15 33 34.005990672	18.7	18.7	~	36
7	QSO J1235-3050	QSO	12 35 45.9544761720	-30 50 53.234023452	18.7	18.7	~	5
8	QSO J1342-1355	QSO	13 42 58.8724541136	-13 55 59.812504788	19.2	19.2	~	23
9	QSO J1456-1938	QSO	14 56 49.8695499336	-19 38 52.161800496	18.7	18.7	~	6

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