J/MNRAS/437/2017 HI-galaxy cross-correlation at z≲1 (Tejos+, 2014)
On the connection between the intergalactic medium and galaxies:
the HI-galaxy cross-correlation at z ≲ 1.
Tejos N., Morris S.L., Finn C.W., Crighton N.H.M., Bechtold J.,
Jannuzi B.T., Schaye J., Theuns T., Altay G., Le Fevre O., Ryan-Weber E.,
Dave R.
<Mon. Not. R. Astron. Soc., 437, 2017-2075 (2014)>
=2014MNRAS.437.2017T 2014MNRAS.437.2017T
ADC_Keywords: H I data ; Active gal. nuclei ; QSOs ; Redshifts
Keywords: galaxies: formation - intergalactic medium -
quasars: absorption lines - large-scale structure of Universe
Abstract:
We present a new optical spectroscopic survey of 1777 'star-forming'
('SF') and 366 'non-star-forming' ('non-SF') galaxies at redshifts
z∼0-1 (2143 in total), 22 AGN and 423 stars, observed by instruments
such as the Deep Imaging Multi-Object Spectrograph, the Visible
Multi-Object Spectrograph and the Gemini Multi-Object Spectrograph, in
three fields containing five quasi-stellar objects (QSOs) with Hubble
Space Telescope (HST) ultraviolet spectroscopy. We also present a new
spectroscopic survey of 173 'strong' (1014≤NHI≲1017cm-2) and
496 'weak' (1013≲NHI<1014cm-2) intervening HI (Lyα)
absorption-line systems at z≲1 (669 in total), observed in the
spectra of eight QSOs at z∼1 by the Cosmic Origins Spectrograph and
the Faint Object Spectrograph on the HST. Combining these new data
with previously published galaxy catalogues such as the Very Large
Telescope Visible Multi-Object Spectrograph Deep Survey and the Gemini
Deep Deep Survey, we have gathered a sample of 654 HI absorption
systems and 17509 galaxies at transverse scales ≲50Mpc, suitable for
a two-point correlation function analysis. We present observational
results on the HI-galaxy (ξag) and galaxy-galaxy (ξgg)
correlations at transverse scales rperp≲10Mpc, and the HI-HI
autocorrelation (ξaa) at transverse scales rperp≲2Mpc.
Description:
We used HST spectroscopy of eight QSOs to characterize the diffuse
inter-galactic matter (IGM) through the observations of intervening
HI absorption-line systems. We used data from COS taken under HST
programmes General Observer (GO) 12264 (PI: Morris), GO 11585 (PI:
Crighton) and GO 11598 (PI: Tumlinson); and data from the Faint Object
Spectrograph (FOS) taken under HST programmes GO 5320 (PI: Foltz), GO
6100 (PI: Foltz) and GO 6592 (PI: Foltz).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 75 8 Properties of the observed QSOs
tablea1.dat 42 120 HI absorption systems in QSO Q0107-025A
tablea2.dat 42 67 HI absorption systems in QSO Q0107-025B
tablea3.dat 42 50 HI absorption systems in QSO Q0107-0232
tablea4.dat 42 156 HI absorption systems in QSO J020930.7-043826
tablea5.dat 42 139 HI absorption systems in QSO J100535.24+013445.7
tablea6.dat 42 66 HI absorption systems in QSO J102218.99+013218.8
tablea7.dat 42 142 HI absorption systems in QSO J135726.27+043541.4
tablea8.dat 42 26 HI absorption systems in QSO J221806.67+005223.6
tablea9.dat 164 1557 Spectroscopic catalogue of objects in Q0107 field
tablea10.dat 136 947 Spectroscopic catalogue of objects in J1005 field
tablea11.dat 135 315 Spectroscopic catalogue of objects in J1022 field
tablea12.dat 136 300 Spectroscopic catalogue of objects in J2218 field
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- QSO QSO Name
21- 25 A5 --- Field Field name
27- 28 I2 h RAh Right Ascension J2000 (hours)
30- 31 I2 min RAm Right Ascension J2000 (minutes)
33- 37 F5.2 s RAs Right Ascension J2000 (seconds)
39 A1 --- DE- Declination J2000 (sign)
40- 41 I2 deg DEd Declination J2000 (degrees)
43- 44 I2 arcmin DEm Declination J2000 (minutes)
46- 49 F4.1 arcsec DEs Declination J2000 (seconds)
51- 57 F7.5 --- z QSO redshift
59- 62 F4.1 mag mag QSO magnitude
64 A1 --- n_mag [BVg] Band of QSO magnitude
66- 69 F4.1 mag NUV GALEX/NUV AB magnitude
71- 74 F4.1 mag FUV GALEX/FUV AB magnitude
75 A1 --- n_FUV [a] sudden decrease in flux is due to the
presence of a Lyman Limit System
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea[12345678].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 F8.6 --- z [0/1.25] HI redshift
10- 17 F8.6 --- e_z rms uncertainty on z
19- 23 F5.2 [cm-2] logNHI HI column density from Voigt profile fitting
25- 30 F6.2 [cm-2] e_logNHI rms uncertainty on logNHI
32- 35 I4 km/s bHI HI Doppler parameter from Voigt profile fitting
37- 40 I4 km/s e_bHI rms uncertainty on bHI
42 A1 --- Flag [abc] Confidence label (a=secure) (G1)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea9.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.10 deg RAdeg Right ascension in degrees (J2000)
15- 28 F14.11 deg DEdeg Declination in degrees (J2000)
30- 37 F8.4 mag Rmag ?=-99.0 R-band magnitude (MAG_AUTO)
given by SExtractor
39- 45 F7.4 mag e_Rmag ?=-9.0 Error in Rmag as given by SExtractor (G2)
47- 56 F10.7 --- zgal ?=-1 Redshift
58 A1 --- q_zgal [abcn] Redshift label (a=secure) (G1)
69- 74 A6 --- Type Spectral type (G3)
76- 81 A6 --- Inst Instrument used to get the spectrum (G4)
86- 90 F5.2 --- Class ?=-1 CLASS_STAR as given by SExtractor (1=star)
98 I1 --- Flag [0/1] Flag to indicate that an object was
observed only once "0" or more than once "1"
109-113 A5 --- Field Name of the field
115-130 F16.14 deg SepQA Angular separation between the object and
QSO Q0107-025A sightline
132-147 F16.14 deg SepQB Angular separation between the object and
QSO Q0107-025B sightline
149-164 F16.14 deg SepQC Angular separation between the object and
QSO Q0107-0232 sightline
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea1?.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 F10.6 deg RAdeg Right ascension in degrees (J2000)
12- 25 F14.12 deg DEdeg Declination in degrees (J2000)
27- 34 F8.4 mag Rmag ?=-99.0 R-band magnitude (MAG_AUTO)
given by SExtractor
36- 42 F7.4 mag e_Rmag ?=-9.0 Error in Rmag as given by SExtractor (G2)
44- 61 E18.14 --- zgal ?=-1 Redshift
64 A1 --- q_zgal [abcn] Redshift quality label (a=secure) (G1)
75- 80 A6 --- Type Spectral type (G3)
82- 87 A6 --- Inst [VIMOS] Instrument used to get the spectrum (G4)
92- 96 F5.2 --- Class ?=-1 CLASS_STAR as given by SExtractor (1=star)
104 I1 --- Flag [0/1] Flag to indicate that an object was
observed only once "0" or more than once "1"
115-119 A5 --- Field Name of the field.
121-136 F16.14 deg SepQ Angular separation between the object and
QSO sightline
--------------------------------------------------------------------------------
Global notes:
Note (G1): Confidence labels are:
a = secure
b = possible
c = uncertain
n = undefined
Note (G2): we note that these uncertainties might be underestimated
by a factor of ∼3.
Note (G3): Spectral classification:
SF = star-forming galaxy
non-SF = non-star-forming galaxy
star = star
AGN = active galactic nuclei
none = undefined
Note (G4): Instruments used are:
VIMOS = Visible Multi-Object Spectrograph on VLT
DEIMOS = Deep Imaging Multi-Object Spectrograph on Keck
GMOS = Gemini Multi-Object Spectrograph
CFHT = CFHT-MOS (Morris & Jannuzi 2006, J/MNRAS/367/1261)
D, DG, DV, G, GV, GVC, V = unexplained instruments / origins
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Nov-2014