CDS

2015A&A...580A..29B

Query : 2015A&A...580A..29B

2015A&A...580A..29B - Astronomy and Astrophysics, volume 580A, 29-29 (2015/8-1)

A new 3 mm band receiver for the Onsala 20 m antenna.

BELITSKY V., LAPKIN I., FREDRIXON M., SUNDIN E., HELLDNER L., PETTERSSON L., FERM S.-E., PANTALEEV M., BILLADE B., BERGMAN P., OLOFSSON A.O.H., LERNER M.S., STRANDBERG M., WHALE M., PAVOLOTSKY A., FLYGARE J., OLOFSSON H. and CONWAY J.

Abstract (from CDS):

A new receiver for the Onsala 20m antenna with the possibility of being equipped with 3mm and 4mm bands has been built and the 3mm channel has been commissioned during the Spring 2014(Spring 2014) to be used at Onsala 20m antenna. For single-dish operation, the receiver uses an innovative on-source/off-source optical switch. In combination with additional optical components and within the same optical layout, the switch provides two calibration loads (for the 3mm and 4mm channels), sideband rejection measurement, and tuning possibilities. The optical layout of the receiver employs all cold (4K) offset elliptical mirrors for both channels, whereas the on-off switch employs flat mirrors only. The 3mm channel employs a sideband separation (2SB) dual polarization receiver with orthomode transducer (OMT), 4-8GHz intermediate frequency (IF), x2pol xupper and lower sidebands (USB+LSB). The cryostat has four optical windows made of high density polyethylene (HDPE) with anti-reflection corrugations, two for the signal and two for each frequency band cold load. The cryostat uses a two-stage cryocooler produced by Sumitomo HIRDK408D2 with anti-vibration suspension of the cold-head to minimize impact of the vibrations on the receiver stability. The local oscillator (LO) system is based on a Gunn oscillator with a phase lock loop (PLL) and totally four mechanical tuners for broadband operation, providing independently tunable LO power for each polarization. This paper provides a technical description of the receiver and its technology and could be useful for instrumentation engineers and observers using the Onsala 20m telescope.This paper is intended to provide a reference on the receiver technology for the observers using Onsala 20m antenna.

Abstract Copyright: ∼

Journal keyword(s): telescopes - instrumentation: detectors

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 82 AG? 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5780 6

Query : 2015A&A...580A..29B

Basic data :
M 82 -- Active Galaxy Nucleus Candidate
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		IG (), Rad (BWE,3C,...), G (2013ApJS,APG,...), X (2012ApJS,1AXG,...), gam (1FGL,2FGL,...), IR (IRAS,PSCz,...), QSO (QSO), AGN (2011ApJ), GiP (KPG), GiG ([CHM2007]), AG? (2020MNRAS), Opt (SDSS), PoG ([RPS97])
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		09 55 52.430 +69 40 46.93 (Infrared) [ ] C 2006AJ....131.1163S
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		09 51 43.700 +69 55 00.79 [ ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		141.409467 +40.566962 [ ]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 219 [27] / z(spectroscopic) 0.00073 [0.00009] / cz 218.8 [27.0]
   (Opt) E 2009ApJS..182..543A
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		S C 2019MNRAS.488..590B
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (11) :
U 9.61 [0.09] D 2007ApJS..173..185G
B 9.30 [0.09] D 2007ApJS..173..185G
V 8.41 [0.09] D 2007ApJS..173..185G
J 5.841 [0.015] C 2006AJ....131.1163S
H 5.065 [0.015] C 2006AJ....131.1163S
K 4.665 [0.015] C 2006AJ....131.1163S
u (AB) 19.501 [0.057] D 2009ApJS..182..543A
g (AB) 17.321 [0.006] C 2009ApJS..182..543A
r (AB) 15.656 [0.004] C 2009ApJS..182..543A
i (AB) 15.145 [0.004] C 2009ApJS..182..543A
z (AB) 14.151 [0.004] C 2009ApJS..182..543A
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 6
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 1301 		: 53 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (87) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

M 82 GB6 B0951+6955 PRC D-13 WN B0951.7+6954
APG 337 87GB 095143.5+695452 PSCz Q09517+6954 WN B0951.7+6954A
1AXG J095549+6940 HIJASS J0955+69B QSO B0951+699 9Y-MST J0955+6939
BWE 0951+6954 INTREF 396 RAFGL 1388 Z 333-8
3C 231.0 IRAS F09517+6954 RBS 809 Z 0951.7+6955
3C 231 IRAS 09517+6954 RGB J0955.9+6940 [B93] 14
4C 69.12 JVAS J0955+6940 RGB J0955+696 [BAG2012] 148.9211+69.6846
6C 095143+695502 1Jy 0951+69 RX J095550+69406 [CAB95] IRAS F09517+6954
7C 095143.50+695500.00 1Jy 0951+699 RX J0955.8+6940 [CHM2007] HDC 552 J095552.43+6940469
8C 0951+699 KPG 218b 1RXS J095550.4+694052 [CHM2007] LDC 842 J095552.43+6940469
3CR 231 LEDA 28655 S4 0951+699 [DML87] 745
CXOM82 J095549.7+694043 2MASX J09555243+6940469 S4 0951+69 [DSL2000] 0951+700
DA 277 MCG+12-10-011 SDSS J095551.73+694048.6 [M98c] 095145.3+695511
1E 0951+69.8 2MFGC 7685 SWIFT J0956.1+6942 [NKB95] N3034
2E 2197 NAME UMa A TeV J0955+696 [R97] NGC 3031 1
2E 0951.7+6955 NAME Cigar Galaxy 4U 1004+70 [RPS97] NGC 3034 2
1ES 0951+69.9 NGC 3034 UGC 5322 [SPS97] 8
1FGL J0956.5+6938 NRAO 341 UT 0951+699 [TSA98] J095541.25+693927.31
2FGL J0955.9+6936 NVSS J095551+694046 UZC J095557.0+694110 [VDD93] 100
3FGL J0955.4+6940 PBC J0955.7+6941 VLSS J0955.8+6940 [WZX98] 09517+6954
4FGL J0955.7+6940 PCCS1 030 G141.43+40.58 WB 0951+6954 [ZEH2003] RX J0955.8+6940 1
3FHL J0955.8+6939 PLCKERC -100 G141.42+40.57 WMAP J0955+6940

References (5780 between 1850 and 2024) (Total 5780)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


velocities : 14    distance : 11   

   

Observing logs


herschel : 102    ISO : 32    IUE : 9    XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : M 82

Link by name to the catalogue in VizieR :

APG 337 BWE 0951+6954 3C 231.0 3C 231 4C 69.12
3CR 231 2E 2197 IRAS F09517+6954 IRAS 09517+6954 KPG 218b
2MASX J09555243+6940469 NGC 3034 NVSS J095551+694046 RAFGL 1388 1RXS J095550.4+694052
SDSS J095551.73+694048.6 UGC 5322 WMAP J0955+6940 WN B0951.7+6954 WN B0951.7+6954A
[DML87] 745

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Indications mainly about references on other documents
Notes (1) :

Annotations :
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2023.11.28-12:01:36

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