Question

Tonry and Schneider proposed using these objects as a secondary distance indicator by measuring their surface brightness fluctuations, which are derived by subtracting an isophotal model. The pointwise correlation between these objects’ shapes is used to measure the cosmic shear from weak gravitational (-5[1])lensing. The result that these objects’ surface brightness is proportional to “the exponential of minus the fourth root of radius” was generalized by José Luis Sérsic (“SAIR-sitch”). The (10[1])luminosity of (10[1])these (10[1])objects (10[1])is proportional to the fourth power (-5[1])of (-5[1])their (-5[1])velocity (10[1])dispersion. (10[3]-5[2])De Vaucouleurs’s (“voh-koo-LURR’s”) law (10[2])describes (10[1])these objects, whose spectra have strong absorption features since they lack HII (“H-two”) regions and are dominated by old red stars, (10[2])as they formed from past mergers. The left of Hubble’s tuning fork contains, for 10 points, what oval-shaped (10[1])galaxies? ■END■ (10[6]0[1])

ANSWER: elliptical galaxies [accept ellipsoidal galaxies; prompt on galaxies until read; reject “elliptic galaxies” or “ellipse galaxies”]
<Other Science>
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Summary

2025 ACF Nationals04/19/2025Y2195%0%29%98.80

Buzzes

PlayerTeamOpponentBuzz PositionValue
Rasheeq AzadNorth Carolina ALSE42-5
Caleb OttWaterloo BGeorgia Tech6910
Bryan UgazArizona StateNorth Carolina B7110
Athena ShaddenTexasToronto A7210
Kushal AluruRutgersVirginia7310
Parth JagtapToronto CNYU79-5
Sinecio MoralesJohns HopkinsVirginia Tech80-5
Neal JoshiWUSTL AIllinois B81-5
Adam FineChicago AToronto B8210
Jonathan HuangMITCornell B83-5
Yashwanth BajjiMichiganBritish Columbia83-5
Calvin BostlemanOhio StateUC Berkeley B8310
Shiva TegullaUCFNorthwestern8310
Liam KusalikWaterloo AOttawa8310
Ezra SantosChicago BIllinois A8610
Rohan ShelkeUC Berkeley AColumbia B8610
Richard NiuCornell AMaryland8710
Allan LeeStanfordGeorgia State10710
Alan XieYaleFlorida10710
Geoffrey WuColumbia AWinona State12510
Joy AnHarvardVanderbilt12710
Yash MandaviaIllinois BWUSTL A12710
Noah ChinVirginia TechJohns Hopkins12710
Albert Yingzhi NyangLSENorth Carolina A12710
Yared TadesseCornell BMIT1270
Russell NipBritish ColumbiaMichigan12710
Eshan PantNYUToronto C12710