Author Topic: stellar spectra sample -- star classes  (Read 5457 times)

c_cld

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stellar spectra sample -- star classes
« on: August 04, 2011, 05:41:54 pm »
Quote from:  DR8 site
DR8 stars
classes of stars were given different letters as names; in order of decreasing temperature, they are OBAFGKMLT.
The table to the right shows the spectral classes and the temperatures of stars that belong to each class. The hottest stars are class O, while the coolest are class T.

Type Temp (°K)
O >25,000
B 11,000-25,000
A 7,500-11,000
F 6,000-7,500
G 5,000-6,000
K 3,500-5,000
M 2,200-3,500
L 1,600-2,200
T <1,600
CLASS    objid  IAUname  ra  dec     

A0 1237667730196529555 SDSS J082912.98+120048.2


A0p 1237659133280190466 SDSS J135746.58+530758.9


B6 1237654949988532416 SDSS J161257.82+524145.9


B9 1237662238553342010 SDSS J142211.11+092043.5


Carbon 1237662530069201166 SDSS J144514.69+121152.0


Carbon_lines 1237678617426788493 SDSS J012150.42+011301.3


CarbonWD 1237671991338401886 SDSS J132931.05+074651.6


CV 1237667782825279530 SDSS J104658.22+205326.3


F2 1237651539791446066 SDSS J142252.82+650240.9


F5 1237667447806558267 SDSS J124957.03+251036.7


F9 1237667910607503494 SDSS J143957.76+200254.2


G0 1237656568647647615 SDSS J203824.57+000937.2


G2 1237667968031260776 SDSS J145203.73+204009.6


G5 1237654948378312816 SDSS J160944.96+511200.8


K1 1237657071698182187 SDSS J020937.13+003829.6


K3 1237667254540828801 SDSS J101732.25+264721.0


K5 1237662301370646804 SDSS J155758.70+362612.5


K7 1237668756700922252 SDSS J201145.57-123824.1


L0 1237659325498589854 SDSS J170716.17+280453.2


L1 1237652598491185873 SDSS J212210.95-080611.7


L2 1237668331489067154 SDSS J142152.24+143645.7


L3 1237648722833572041 SDSS J104842.83+011158.4


L4 1237660750334984502 SDSS J042554.33+271324.1


L5 1237666406869762236 SDSS J054635.79-005508.1


L5.5 1237660761610059987 SDSS J043717.48+262641.8


L9 1237660761073516799 SDSS J044026.19+255916.8


M0 1237659149386776872 SDSS J150459.44+520126.8


M0V 1237668298212442189 SDSS J134040.52+190217.8


M1 1237665127989706821 SDSS J091857.83+254941.0


M2 1237660552765506133 SDSS J042619.60+274705.3


M2V 1237661356999245971 SDSS J103300.07+435243.7


M3 1237663784196178116 SDSS J234849.81-000002.9


M4 1237667783354220737 SDSS J093123.17+173839.2


M5 1237663332149297701 SDSS J053942.30-003936.0


M6 1237650795683446879 SDSS J094720.07-002009.5


M7 1237671939260219518 SDSS J150538.99+563352.8


M8 1237660553301852363 SDSS J042420.89+263050.9


M9 1237663788500583027 SDSS J093237.45+672514.8


O 1237658611442581530 SDSS J105759.36+470307.4


OB 1237660343937794142 SDSS J095356.61+412649.8


T2 1237661212045410521 SDSS J143920.71+445014.5


WD 1237674650999914544 SDSS J113709.83+003542.8


WDmagnetic 1237651251502448675 SDSS J133340.34+640627.5



« Last Edit: August 05, 2011, 11:18:09 am by c_cld »

AlexandredOr

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Re: stellar spectra sample -- star classes
« Reply #1 on: August 04, 2011, 05:59:49 pm »
Great work, very very useful. Thanks a lot c_cld !

Baby star opening its eyes on the Universe.

Bruno

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Re: stellar spectra sample -- star classes
« Reply #2 on: August 05, 2011, 07:49:35 am »
Why not an OOTD?
Great job.... 8)
Ciao
Bruno

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c_cld

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Re: stellar spectra sample -- star classes
« Reply #3 on: August 05, 2011, 11:20:20 am »
update
The stellar parameters indicated for each star in the sample:
  • effective temperature (Teff),
  • metallicity [Fe/H]
are derived from the observational data via the SEGUE Spectral Parameter Pipeline (SSPP).
objid                              Teff    [Fe/H]  class
1237667730196529555 7542 -1.174 A0
1237659133280190466 n/a       n/a   A0p
1237654949988532416 7201    n/a   B6
1237662238553342010 n/a       n/a   B9
1237662530069201166 5227 -3.507 Carbon
1237678617426788493 4596    n/a   Carbon_lines
1237671991338401886 5817    n/a   CarbonWD
1237667782825279530 6854    n/a   CV
1237651539791446066 5929 -0.798 F2
1237667447806558267 6262 -1.627 F5
1237667910607503494 5507 -0.237 F9
1237656568647647615 5904 -0.787 G0
1237667968031260776 5567 -0.769 G2
1237654948378312816 5745 -2.118 G5
1237657071698182187 5210 -0.288 K1
1237667254540828801 4558 -0.412 K3
1237662301370646804 4483 -0.399 K5
1237668756700922252 4135 -0.379 K7
1237659325498589854  n/a     n/a   L0
1237652598491185873  n/a     n/a   L1
1237668331489067154  n/a     n/a   L2
1237648722833572041  n/a     n/a   L3
1237660750334984502  n/a     n/a   L4
1237666406869762236  n/a     n/a   L5
1237660761610059987 5245   n/a   L5.5
1237660761073516799  n/a     n/a   L9
1237659149386776872 4000 -0.659 M0
1237668298212442189  n/a     n/a   M0V
1237665127989706821  n/a     n/a   M1
1237660552765506133  n/a     n/a   M2
1237661356999245971  n/a     n/a   M2V
1237663784196178116  n/a     n/a   M3
1237667783354220737  n/a     n/a   M4
1237663332149297701  n/a     n/a   M5
1237650795683446879  n/a     n/a   M6
1237671939260219518 4782   n/a   M7
1237660553301852363  n/a     n/a   M8
1237663788500583027  n/a     n/a   M9
1237658611442581530  n/a     n/a   O
1237660343937794142  n/a     n/a   OB
1237661212045410521  n/a     n/a   T2
1237674650999914544 9009   n/a   WD
1237651251502448675 5798   n/a   WDmagnetic

c_cld

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Re: Illustrative Spectra -- Blue Horizontal Branch Stars
« Reply #4 on: August 05, 2011, 08:39:52 pm »
From examples of Illustrative Spectra Blue Horizontal Branch Stars

subclass  objid  IAUname     Teff      Fe/H 
F5 1237666244671701659 SDSS J203534.24+141044.0 6576 -0.1208

 
A0 1237666428280832768 SDSS J202444.77+123028.0 7454 0.4748

 
A0 1237678617938690155 SDSS J213328.78+011230.0 7527 -1.4683

 
A0 1237649919501598744 SDSS J005020.57+143256.6 7540 -1.2856

 
A0 1237663542600663353 SDSS J204242.38-003403.7 7772 -1.884

 
A0 1237666246280874552 SDSS J202055.30+141516.5 9094 -1.1863



c_cld

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Re: Illustrative Spectra -- Carbon-Enhanced Metal-Poor Stars
« Reply #5 on: August 05, 2011, 08:56:35 pm »
From examples of Illustrative Spectra Carbon-Enhanced Metal-Poor Stars

see changes from site page (DR7?) to DR8 data here
subclass  objid  IAUname     Teff     Fe/H
G5 1237667227685617679 SDSS J020826.81+055743.0 4788 -2.094

 
G5 1237666244134764897 SDSS J203529.78+134317.5 4815 -2.335

 
F9 1237669766010568794 SDSS J003714.58+064441.6 5546 -1.6275


F5 1237678583577772207 SDSS J020715.65+220438.2 5967 -1.7402

 
F5 1237657071160262740 SDSS J015952.19+001259.3 6290 -2.2452

 
A0 1237663234984313420 SDSS J235102.62+394353.0 6546 -2.5553


c_cld

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Re: Illustrative Spectra -- F Turnoff Stars
« Reply #6 on: August 05, 2011, 09:08:29 pm »
From examples of Illustrative Spectra F Turnoff Stars

see changes from site page (DR7?) to DR8 data here

subclass  urlobjid  objid  IAUname Teff Fe/H  ra  dec     
F5 1237666090593484807 SDSS J011516.88+260123.4 5615 -2.1423

 
A0 1237666227497730681 SDSS J180216.67+234141.5 6057 -3.1553

 
A0 1237649920037617848 SDSS J004247.30+145913.4 6269 -2.6667

 
A0 1237653008657744167 SDSS J211232.10+105332.5 6318 -2.1516

 
F5 1237666244133323862 SDSS J202301.63+123634.8 6414 -0.2465

 
A0 1237669516361597032 SDSS J230026.34+055956.1 6512 -2.9367



c_cld

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Re: Illustrative Spectra -- G Dwarfs
« Reply #7 on: August 05, 2011, 09:13:43 pm »
From examples of Illustrative Spectra G Dwarfs

see changes from site page (DR7?) to DR8 data here

subclass  urlobjid  objid  IAUname Teff Fe/H  ra  dec     
F9 1237649920037552132 SDSS J004140.54+150311.6 5090 -1.0861

 
F9 1237680069103517699 SDSS J013734.23+224058.7 5371 -0.5929

 
F9 1237656495097839921 SDSS J213231.72+105244.5 5438 0.4149

 
F9 1237666300017115186 SDSS J030629.95-003640.7 5909 -0.1314



c_cld

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Re: Illustrative Spectra -- K Dwarfs
« Reply #8 on: August 05, 2011, 09:20:05 pm »
From examples of Illustrative Spectra K Dwarfs

see changes from site page (DR7?) to DR8 data here

subclass    objid    IAUname   Teff   Fe/H 
K5 1237656569184847072 SDSS J204123.69+002708.3 4502 0.0374

 
K5 1237663234981888395 SDSS J234404.90+450315.8 4528 -0.1396

 
K1 1237663233372324198 SDSS J234036.45+422108.3 4854 -0.0144

 
K1 1237666246283756708 SDSS J204652.70+163143.6 5219 0.3841



c_cld

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Re: Illustrative Spectra -- K Giants
« Reply #9 on: August 05, 2011, 09:24:47 pm »
From examples of Illustrative Spectra K Giants

see changes from site page (DR7?) to DR8 data here

subclass     objid  IAUname   Teff   Fe/H       
K1 1237657607493451929 SDSS J074611.04+292451.7 4729 -0.5762

 
F9 1237666227498058034 SDSS J180455.80+232801.9 5150 -0.7906

 
F5 1237670956787630092 SDSS J013152.00-090851.8 5231 -2.95

 
F5 1237660959177637984 SDSS J074101.80+204524.1 5429 -2.0573



c_cld

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Re: Illustrative Spectra -- Low Metallicity Stars
« Reply #10 on: August 05, 2011, 09:29:53 pm »
From examples of Illustrative Spectra Low Metallicity Stars


see changes from site page (DR7?) to DR8 data here

subclass    objid  IAUname   Teff   Fe/H 
F5 1237654654182097004 SDSS J093517.59+535541.3 5723 -2.9033

 
F5 1237669702658621481 SDSS J003754.99+075155.0 5867 -2.0896

 
F5 1237651495753482740 SDSS J073314.63+365645.1 5889 -1.5513

 
A0 1237664094513791035 SDSS J091325.33+310519.2 5912 -3.2387

 
B9 1237670015119720537 SDSS J021152.15+060244.3 5993 -3.7826

 
G2 1237666428819538288 SDSS J204007.31+142430.6 6017 -0.2861



c_cld

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Re: Illustrative Spectra -- White Dwarfs
« Reply #11 on: August 05, 2011, 09:34:44 pm »
From examples of Illustrative Spectra White Dwarfs
see changes from site page (DR7?) to DR8 data here

subclass  urlobjid  objid  IAUname Teff Fe/H  ra  dec     
OB 1237661126143967648 SDSS J074253.65+185306.6 -9999 -9999

 
CarbonWD 1237661382234013775 SDSS J092909.02+331011.7 -9999 -9999

 
WD 1237663232837156950 SDSS J234349.18+383429.8 8992 -3.2728