D e n n i s C r a b t r e e N R C H e r z b e r g ( a k a H I A )

Transcription

1 D e n n i s C r b t r e e N R C H e r z b e r g ( k H I A )

2 Refereed ppers bsed on CFHT dt > These ppers represent CFHT s contribution to the dvncement of stronomy And the ROI of the funding gencies Through 2011 there hve been 2000 refereed ppers tht hve used CFHT dt These 2000 ppers hve received over cittions! How hs CFHT s productivity nd impct vried? Compre to other observtories? Wht hs been the productivity of the vrious instruments? Which instruments hve hd the highest impct? All this nd more will be reveled!

3 1980PASP V The compct glxy NGC 3928 = Mk 190 is ssigned type E0 in the Second Reference Ctlogue of Bright Glxies (de Vucouleurs, de Vucouleurs, nd Corwin 1976) nd is clssified S0 by Borngen nd Klloglyn (1975). Intgegrted photogrphic surfce photometry by Borngen, Klloglyn, nd Egikyn (1976) yields V = 12.88, (B-V) = 0.82, nd (U-B) 0.06 for this object. The lter vlue is unusully blue for nd erly-type glxy. To check on the E/S0 clssifiction 60 minute III -J + GG 385 exposure of this compct object ws obtined through the f/4.2 wide-field corrector t the prime focus of the CFH 3.6-m telescope in seeing < 1.0. This photogrph shows tht NGC 3928 is, in fct, very smll fce-on spirl with bright core hving dimeter of 8 nd disk dimeter 29 contining well-defined spirl rms. According to Srgent (1972) the bright core of this Mrkrin glxy exhibits λ3727 nd Hβ emission. Published rdil velocity observtions of NGC 3928 re consistent with the ssumption tht it is member of the Urs Mjor Cloud of glxies which is locted t distnce of ~ 10 Mpc. At this distnce the spirl rm region of this glxy extends from 190 pc to 700 pc from its nucleus. With these dimensions NGC 3928 is perhps the smllest glxy in which well-defined spril structure hs ever been observed. The regulrity of the spirl rms in this glxy is quite unexpected becuse its luminosity (M V ~ log h is so low.

4 The # of publictions is mesure of the productivity of n observtory But how relevnt/importnt is the work? Cittion counts re stndrd mesure of the impct of pper, i.e., the more cittions the more relevnt the work List of ppers retrieved (usully) from observtory websites or obtined from observtory librrins (Thnks!) No checking of these lists trust observtory judgment on wht constitutes n observtory pper A pper bsed on dt cquired t the observtory Mny ppers bsed on dt obtined from more thn one observtory Give ech observtory full credit for these ppers Cittions / Author list for ech pper retrieved from ADS

5 Observtory Telescope # of Telescopes Source of Pper List AAO AAT 1 Annul Reports CTIO Blnco 1 Librrin CFHT CFHT 1 Librrin ESO ESO3p6 1 Online Dtbse Gemini Gemini 2 Librrin HET HET 1 Online Dtbse HST HST 1 Online Dtbse JACH JCMT 1 Online Dtbse Keck Keck 2 Librrin LBT LBT 1 ADS Mgelln Mgelln 2 Web Pges KPNO Myll 1 Librrin MMT MMT 1 ADS ESO NTT 1 Online Dtbse SOAR SOAR 1 Online Dtbse Subru Subru 1 Web Pges JACH UKIRT 1 Web Pges ESO VLT 4 Online Dtbse WIYN WIYN 1 Librrin

6 CFHT - # of Ppers by Yer # o f P p e r s Yer

7 # o f P p e r s

8 # o f P p e r s

9 CFHT # of Ppers Avg. # of Authors per Pper Yer

10 A v e r g e # p 1000 e 8 or # f 800 P 7.5 o P f p pe A er u r 6.5 t 400 s h 6 o r 200 s 5.5 Averge # of Authors per Pper # of Ppers vs # of Authors # of Authors

11 Significnt # of ppers include dt from more thn one Telescope telescope Significntly different thn 20 yers go AAT Blnco CFHT ESO3p Gemini HET HST JCMT Keck LBT Mgelln Myll MMT NTT SOAR Subru UKIRT VLT WIYN Blurring the mening of n observtory pper % Unique AAT 75.7% Blnco 29.9% CFHT 38.6% ESO3p6 56.0% Gemini 37.6% HET 43.3% HST 61.9% JCMT 82.5% Keck 44.6% LBT 51.1% Mgelln 35.0% Myll 31.4% MMT 45.9% NTT 40.1% SOAR 51.8% Subru 43.5% UKIRT 47.4% VLT 52.8% WIYN 41.3%

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13 Cittions counts grow s pper ges Pek cittion/count/yer occurs ~ 2-3 yers fter publiction Need stndrd cittion (impct) metric Allows comprison of ppers of different ges Common tretment of impct for the complete smple Use the medin cittion count for AJ ppers of given yer s stndrd mesure Impct is defined s the rtio of the cittions of pper to the medin # of cittions for AJ ppers of the sme yer Using ApJ rther AJ would simply chnge the length of our stndrd mesuring stick (meter yrd) AIPP Averge Impct per Pper MIPP Medin Impct per Pper

14 # 300 o f 250 P p e r s # of Cittions

15 I m p c t AIPP MIPP p e r P p e r

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17 7 Impct vs # of Authors 6 AIPP MIPP I m p c t # of Authors

18 A mesure of sttisticl dispersion most prominently used s mesure of inequlity of income distribution

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20 1 CFHT Distribution of Impct 0.9 CFHT Cumultive Distribution Equl Cumultive Distribution Telescope Gini Coefficient CFHT Gemini HST Keck VLT

21 100 Averge Length of Title in Chrcters L e n g t h o f T i t l e ( C h r c t e r s ) # of Authors

22 Identify instrument(s) used to cquire dt used in publiction Investigte productivity nd impct of vrious instruments

23 Megcm CCD CFH12K Coude f/8 MOS PUEO Pltes FTS ESPDOnS Coude f/4 HRCAM WIRCAM Herzberg Unvilble CFHTIR UH8K Speckle Redeye GRENS SIS FP TIGER EC CIRCUS LAPOUNE OASIS PCD UHTI CAMIRAS MARLIN MONICA UHAO Other SILFID WET BEAR MOSFP NICMOS3 CIGALE PUMA HIFI MOCAM PALILA RVS UHFOS ARGUS FNTOmM GriF InSb MuSiCoS Bolometer C10 CASSHAWEC Grrison OSIS Solr Submm UVPRIME SPI FOCAS Genoble-Lyon ISOCAM TRIDENT # o f P p e r s Instrument # of Ppers by Instrument:

24 # of Ppers by Instrument: Megcm CCD CFH12K Coude f/8 MOS PUEO Pltes FTS ESPDOnS Coude f/4 HRCAM WIRCAM 10 0

25 # of Ppers by Instrument ( ) CCD Coude f/8 MOS Pltes FTS HRCAM Herzberg Speckle GRENS Redeye PUEO Coude f/4 SIS EC TIGER CIRCUS PCD FP UHTI UH8K MARLIN Other WET MONICA NICMOS3

26 # of Ppers by Instrument ( ) Megcm CFH12K ESPDOnS MOS PUEO WIRCAM Coude f/4 CFHTIR UH8K OASIS LAPOUNE CCD Coude f/8 BEAR MOSFP SIS FP

27 A I P P Averge Impct per Pper Megcm CCD CFH12K Coude f/8 MOS PUEO Pltes FTS ESPDOnS Coude f/4 HRCAM WIRCAM Herzberg CFHTIR UH8K

28 T o t l I m p c t Totl Impct Megcm CCD CFH12K Coude f/8 MOS PUEO Pltes FTS ESPDOnS Coude f/4 HRCAM WIRCAM Herzberg CFHTIR UH8K

29 180 T o t l I m p c t CCD CFH12K Coude f/8 MOS PUEO Pltes FTS ESPDOnS Coude f/4 HRCAM WIRCAM Herzberg CFHTIR UH8K 0

30 Megcm CCD CFH12K MOS Coude f/8 ESPDOnS WIRCAM Pltes FTS PUEO HRCAM Coude f/4 UH8K Herzberg NICMOS3 UHTI Speckle SIS GRENS CFHTIR LAPOUNE OASIS Redeye TIGER FP MARLIN UHAO UHFOS WET EC CIGALE InSb HIFI MONICA CIRCUS Other MOSFP CAMIRAS BEAR RVS PUMA PCD CASSHAWEC MOCAM PALILA Submm FNTOmM Bolometer SILFID MuSiCoS GriF ARGUS Solr OSIS TRIDENT FOCAS UVPRIME Grrison SPI ISOCAM Genoble- C Megcm Totl Impct by Instrument ( ) Gini Coefficient = CCD CFH12K MOS Coude f/8

31 Hours Megcm WIRCAM ESPDoNS Other Hours ( ) Ppers ( ) Impct ( Ppers/ Hour Impct/ Hour Megcm WIRCAM ESPDoNS

32 9.00 CFHTLS AIPP non-cfhtls AIPP CFHTLS MIPP non-cfhtls MIPP # of CFHTLS Ppers # of non-cfhtls Ppers I m p c t # o f P p e r s Yer

33 Totl Impct by Yer CFHTLS Totl Impct non-cfhtls Totl Impct Yer

34 CFHT s current productivity & impct (P&I) re t the highest level in its history nd mongst the highest of ny O/IR telescope At ny given time in CFHT s history, P&I usully concentrted in smll number of instruments recently this hs been MegCm Through erly 1990s exploited IQ for direct imging MOS domintes mid-1990s exceptionl instrument, one of the first of its kind; key ws erly exploittion of new cpbility Mid-1990s onwrd hs been the domin of WF imging MOCAM, UH8K, CFH12K, MegCm No longer sufficient to simply rely on excellent imge qulity First to exploit wide-field imging; strtegeic lrge-scle surveys; Wht bout the future? More powerful wide-field imging coming on-line DEC, HSC, LSS

35 Ppers re now published by lrger groups 30% the impct of group cittions needs to be included s well A 25% cittion is counted s self-cittion is the first uthor of the citing pper mtches ny uthor in the cited pper. % o f s e l f - 20% c i 15% t 10% t i o n5% s 0% This pproch includes the trditionl self cittions s well s groups citing their previous work # of Cittions

36 25.0% 25.0% S Se el l 20.0% f 20.0% f - -C Ci 15.0% i t 15.0% t t t i 10.0% io 10.0% on n R 5.0% R 5.0% t te e 0.0% 0.0% Cosmology Glxies Glxy ISM Solr System Strs Science 11 Are # of Authors

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38 Dtbse of Cndin fculty nd permnent reserchers Ancillry dt such s gender, yer of PhD, country nd institute of PhD Retrieve ppers nd cittions counts from ADS Clculte metrics such s h-index nd g-index

39 250 # of Ppers per Person vs Yers Since PhD Women Men All Liner (All) y = x Yers Since PhD

40 Averge H-index Averge Mprm H - I n d e x m - p r m Yers Since PhD 0.00

41 2.50 A v e r g e Albert RMC Western McGill Wterloo CITA HIA-V UBC Victori McMster Dlhousie M - p r m Guelph Mnitob Toronto York St Mrys Clgry Trent Lvl HIA-P Queens Montrel Averge H-Index

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