Author Topic: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'  (Read 13423 times)

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #15 on: November 11, 2011, 01:58:22 pm »
Today I posted objid 1237663479256776957 (class=Starburst) in the "Peas" thread.
If I checked right, it isn't listed. I wonder why.


Rick Nowell

  • Hero Member
  • *****
  • Posts: 1333
  • Bristol, U.K.
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #16 on: November 13, 2011, 04:27:32 pm »
If I checked right, it isn't listed. I wonder why.
Possibly because it isn't a Green Pea, but rather a Hydrogen-rich Compact Dwarf.

http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237663479256776957


zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #17 on: November 13, 2011, 06:00:06 pm »
If I checked right, it isn't listed. I wonder why.
Possibly because it isn't a Green Pea, but rather a Hydrogen-rich Compact Dwarf.
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237663479256776957

Thank you for your comment: I didn't have a clue, what other galaxy type it might be.
I am not much familiar with peas and similiar galaxies like Compact Dwarfs, but I think, that your classification is probably right.
As far as I know, there is no thread for Compact Dwarf galaxies: Maybe I should start it.
There was an OOTD about UCDs: http://www.galaxyzooforum.org/index.php?topic=278313.msg498016#msg498016

c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #18 on: November 13, 2011, 06:10:49 pm »
Hi zutopian,
There is no need of a new thread as we have already Dwarf Galaxies

Thanks

c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #19 on: November 13, 2011, 06:23:27 pm »
1237665354545692855 SDSS J162436.33+335711.5 z=0.36279
587733431919378538




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #20 on: November 13, 2011, 06:30:27 pm »
1237665428634533954 SDSS J142001.22+262804.2 z=0.387
587739707409629201




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #21 on: November 13, 2011, 07:07:17 pm »
1237665548897943751 SDSS J153654.70+182831.0 z=0.3874
587739827673038879




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #22 on: November 13, 2011, 07:18:15 pm »
1237664870285705434 SDSS J091523.09+334429.8
587735042542731486




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #23 on: November 14, 2011, 10:49:50 am »
Objects in reference 2011ApJ...728..161I
Astrophys. J., 728, 161 (2011)
Green pea galaxies and cohorts: luminous compact emission-line galaxies in the Sloan Digital Sky Survey.
IZOTOV Yu.I., GUSEVA N.G. and THUAN T.X.
--------------------------------------------------------------------------------
Cut and paste ra/dec list (order by redshift )
     name        ra     dec 
1237654390034006070   130.1246609   47.11955604
1237652900228628592   40.21748629   -8.47428545
1237651252018086085   120.4462654   43.8839418
1237664668421849521   123.9666769   21.93990374
1237664106316824733   152.9878462   13.13946237
1237665549967294628   224.3964118   22.53383295
1237660344997708265   116.9916925   23.6091103
1237652900231053501   45.83921936   -7.98978636
1237657630590107652   141.5016751   44.46004419
1237661360765730849   216.0238549   42.27952303
1237662336790036887   235.7551122   34.76708172
1237662661597266223   217.6146206   34.15472006
1237664292084318332   204.8679301   15.27836954
1237667211592794251   158.1123221   27.29867878
1237665129613885585   174.3422474   35.40741496
1237661070336852109   184.766601   15.4357056
1237655464839479591   170.5822231   61.91273606
1237656496190259534   6.71698069   15.46046517
1237671938725380432   234.4052795   58.79465092
1237664092897083648   125.6985928   22.69558205
1237658298448085503   130.5706208   3.63516918
1237665126921011548   152.3291313   29.27264218
1237648721237508405   195.5465106   -0.08790998
1237661418212622553   213.6300053   54.5156597
1237654344401354933   212.9388931   62.65316894
1237662266467418700   236.7879441   3.60391593
1237665373332504919   238.0416719   21.05340939
1237667253994979643   133.3503527   19.50627379
1237661851459584247   154.5135125   41.10585623
1237671266571387104   191.0973995   2.26123949
1237651067351073064   173.2657334   65.22822378
1237662223526068296   171.6573503   38.05081006
1237658300070691104   157.9122169   7.26570078
1237658801495474207   163.3784522   52.63143648
1237649961383493869   54.94912436   -7.42812785
1237655368750530815   181.772004   61.58664503
1237667429018697946   137.8055928   18.5189311
1237661817096962164   192.1443067   12.5674814
1237673807042708368   117.9907489   16.63698953
1237662301900964026   223.6482369   45.48230418
1237661124543709436   137.8798013   31.45744226
1237674366992646574   117.4032167   33.62120698
1237655498664706386   204.2995278   -2.43484153
1237667783376371991   196.7348057   22.69400362
1237663462607552754   351.4134751   0.75202561
1237667735050846428   197.6530755   21.80472996
1237667536393142625   141.8694859   17.67186399
1237659162280264076   251.5272414   31.51486446
1237665442612314800   249.3304369   14.65137341
1237656495641788638   339.3960803   13.61306282
1237655498671849789   220.6307196   -2.16446403
1237662636912280219   239.8582316   8.6886622
1237667142324191658   126.7158637   18.34773033
1237661382232768711   139.260522   31.87237609
1237662301362978958   220.0414227   46.32694395
1237671262812897597   141.3848449   14.05364549
1237664869209473203   131.9753597   33.6152298
1237667448880824641   193.7613147   25.93591258
1237662636912870049   241.1527761   8.33307989
1237662336261292855   251.8980639   22.78299846
1237667486994137370   140.7052841   19.22763184
1237662225129144470   150.556504   34.70490706
1237661362380734819   228.5359785   38.86871425
1237651271358349509   156.563388   63.55244051
1237665127467647162   178.0203545   34.01385459
1237667321644908846   181.2528068   26.34658879
1237651298187149842   261.7763775   59.81732404
1237662300818702524   195.3679982   51.08095141
-------------------------------------------------------------------------------------
of 77 listed in Simbad,  7 are not identified with spectrum in SDSS DR8



 

   

c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #24 on: November 14, 2011, 03:06:54 pm »
Peas of redshift greater than 0.34
add-on update to Reply #2714-2715 on: January 05, 2011 and Reply #2726 on: January 14, 2011 in "Give peas a chance!" thread
 
objid  ra dec subclass IAUname


1237674649387991258 171.26074917 -0.75708384  SDSS J112502.57-004525.5



1237663785279946877 20.14995346 0.85992065  SDSS J012035.98+005135.7



1237663783677198594 38.17389264 -0.35651977  SDSS J023241.73-002123.4



1237660584444493996 152.77851032 8.72432641 STARBURST SDSS J101106.84+084327.5



1237651754024304871 212.02530244 2.40252225  SDSS J140806.07+022409.0



1237663783122370842 357.03780296 -0.68376591  SDSS J234809.07-004101.5



1237665127998423153 161.372045 32.42558295  SDSS J104529.29+322532.0



1237654875357053447 168.08012416 63.53031781  SDSS J111219.22+633149.1



1237654602101162275 151.99579334 4.77396363  SDSS J100758.99+044626.2



1237662198824567181 237.06112047 7.45281697  SDSS J154814.66+072710.1



1237657189816926767 326.71626291 -0.91189018  SDSS J214651.90-005442.8



1237654880201868036 218.85104004 4.01487447  SDSS J143524.24+040053.5



1237663784210530603 29.96476629 0.08580132  SDSS J015951.54+000508.8



1237655109449285759 173.86646426 60.42588791  SDSS J113527.95+602533.1



1237651250958696675 167.22829155 63.73496488  SDSS J110854.78+634405.8



1237662474765533348 238.81840599 35.72352948  SDSS J155516.41+354324.7



1237666301091971772 49.23716976 0.37110294  SDSS J031656.92+002215.9



1237661382233424254 140.84925202 32.44579853  SDSS J092323.82+322644.8



1237661873486364940 213.32900892 41.94968879  SDSS J141318.96+415658.8



1237657071697985614 31.94994468 0.79316893  SDSS J020747.98+004735.4



1237660765911646548 129.74103328 30.9639491  SDSS J083857.84+305750.2



1237662336250086034 228.09901832 38.15907222 BROADLINE SDSS J151223.76+380932.6



1237667537999102468 130.96645732 15.3304492 BROADLINE SDSS J084351.94+151949.6



1237657628986049263 162.38237087 49.98730645  SDSS J104931.76+495914.3



1237664819280871721 164.14436478 35.98000414  SDSS J105634.64+355848.0



1237668495783362658 179.46281223 17.50352559  SDSS J115751.07+173012.6



1237653665793901076 145.80337447 2.72384483  SDSS J094312.80+024325.8



1237665565004202459 232.53994437 16.53731517 BROADLINE SDSS J153009.58+163214.3



1237655473432232502 250.38218151 38.97802729 BROADLINE SDSS J164131.72+385840.8



1237666339190276147 19.62379686 -0.12129301 BROADLINE SDSS J011829.71-000716.6



1237657590853665052 159.5920253 52.52113613 BROADLINE SDSS J103822.08+523116.0



1237666338116796818 20.13416163 -0.91721696  SDSS J012032.19-005501.9



1237663783660355749 359.62995484 -0.37402028  SDSS J235831.18-002226.4



1237663237128323352 49.99921934 -1.08055621  SDSS J031959.81-010450.0



1237664870285967692 139.61811636 33.51848368  SDSS J091828.34+333106.5



1237663277926973773 358.15809064 0.43299338  SDSS J235237.94+002558.7



1237657070089273465 36.28307542 -0.59248073 BROADLINE SDSS J022507.93-003532.9



1237660615051444770 179.29120402 10.59420288  SDSS J115709.88+103539.1


JeanTate

  • OotD posters
  • Hero Member
  • *****
  • Posts: 2976
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #25 on: November 14, 2011, 10:51:40 pm »
From c_cld's (most recent) list, I think 1237655109449285759 173.86646426 60.42588791  SDSS J113527.95+602533.1 is an AGN, given its pronounced UV continuum rise [1].

Others which may also be more AGN than starburst, for the same reason, include:
1237663783677198594 38.17389264 -0.35651977  SDSS J023241.73-002123.4
1237651754024304871 212.02530244 2.40252225  SDSS J140806.07+022409.0
1237665127998423153 161.372045 32.42558295  SDSS J104529.29+322532.0
1237657071697985614 31.94994468 0.79316893  SDSS J020747.98+004735.4
1237663237128323352 49.99921934 -1.08055621  SDSS J031959.81-010450.0
1237663277926973773 358.15809064 0.43299338  SDSS J235237.94+002558.7

[1] as far as I know, there is no way a star-burst can produce this sort of continuum. Of course, doing emission line analyses (BPT diagrams and all) is a more certain way to proceed ...

c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #26 on: November 15, 2011, 10:23:58 am »
Hi Jean,
The BPT diagram relies on the [NII]λ6583 and Hα λ6565 lines. Above redshift 0.4 these lines are not visible in the SDSS spectrum range. That's why the SDSS pipeline doesn't show a BPT spectrum subclass.
Even if the peas you mentionned could be preferably set in "AGN" region, they are strongly star-forming. In the Cardamone's paper, the table 1 breakdown was

Table 1. Spectroscopic Classification
Type Number
Broad Line AGN (Seyfert Type 1) 1
Narrow Line Seyfert 1s 8
Narrow Line AGN (Seyfert Type 2) 10
Transition Objects 13
Star Forming 80
Total 112

In Izotov's paper, the selection criteria were mainly based on Hβ and [O iii] λ4363 lines with exclusion of Seyfert 2 spectral features, such as strong [Ne v]λ3426,
He ii λ4686.

My queries were an attempt to find Izotov peas above the redshift of Cardamone's paper.
Helas in SDSS we couldn't reach the 69 EELG candidates of Extreme Emission Line Galaxies in CANDELS: Broad-Band Selected, Star-Bursting Dwarf Galaxies at z>1
imaging from Hubble Space Telescope/Wide Field Camera 3 (HST/WFC3). 
see post http://www.galaxyzooforum.org/index.php?topic=4913.msg568320#msg568320
I think the desert above z 0.36 isn't so void of peas but hard and worthwhile to study  ;D  ;D

c_cld
« Last Edit: November 15, 2011, 10:26:52 am by c_cld »

c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #27 on: November 16, 2011, 02:21:56 pm »
1237673807044149908 SDSS J080423.49+174825.1  z=0.550 specClass= "GALAXY"
587739407830221343 specClass= 'QSO'




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #28 on: November 16, 2011, 02:27:43 pm »
1237663783120863604 SDSS J233436.21-004636.5




c_cld

  • Hero Member
  • *****
  • Posts: 4948
  • "In some fields, I am at home; in others we are fellow tourists" (Bill )
    • View Profile
Re: 'Green_Peas_DR7_to_DR8_Update_Research_Paper'
« Reply #29 on: November 16, 2011, 03:08:40 pm »
objid  ra dec IAUname 
1237666299480571993 47.38183975 -0.90323217 SDSS J030931.64-005411.6



1237666338114634175 15.27460771 -0.95823943 SDSS J010105.90-005729.6



1237662335179948168 236.07832452 33.14663832 SDSS J154418.79+330847.8



1237656971301683490 12.2578857 -0.58622659 SDSS J004901.89-003510.4



1237656238472495768 326.46416821 0.67527641 SDSS J214551.40+004030.9



1237652901822529665 1.56233417 -9.05461836 SDSS J000614.96-090316.6



1237666339725640046 16.18938956 0.22369306 SDSS J010445.45+001325.2



1237663716019208586 11.15380408 0.53646995 SDSS J004436.91+003211.2



1237663278467055885 5.56516829 0.85563888 SDSS J002215.64+005120.2



1237678617429082284 25.73970508 1.14014543 SDSS J014257.52+010824.5



1237650369404797322 172.19870717 -3.28815835 SDSS J112847.68-031717.3



1237665103834120411 244.17764461 20.95559472 SDSS J161642.63+205720.1