scholarly journals Semi-analytic forecasts forJWST– I. UV luminosity functions atz = 4–10

2018 ◽  
Vol 483 (3) ◽  
pp. 2983-3006 ◽  
Author(s):  
L Y Aaron Yung ◽  
Rachel S Somerville ◽  
Steven L Finkelstein ◽  
Gergö Popping ◽  
Romeel Davé
Keyword(s):  
Luminosity Functions

Luminosity Functions for Globular Clusters

1998 ◽  
Vol 509 (1) ◽  
pp. 192-202 ◽  
Author(s):  
Fabio Silvestri ◽  
Paolo Ventura ◽  
Francesca D'Antona ◽  
Italo Mazzitelli
Keyword(s):  
Globular Clusters ◽  
Luminosity Functions

scholarly journals Carbon stars as standard candles – II. The median J magnitude as a distance indicator

2020 ◽  
Vol 501 (1) ◽  
pp. 933-947
Author(s):  
Javiera Parada ◽  
Jeremy Heyl ◽  
Harvey Richer ◽  
Paul Ripoche ◽  
Laurie Rousseau-Nepton
Keyword(s):  
Luminosity Function ◽  
Asymptotic Giant Branch ◽  
Distance Modulus ◽  
Asymptotic Giant Branch Stars ◽  
Luminosity Functions ◽  
Best Fitting ◽  
Distance Indicator ◽  
Ngc 6822 ◽  
The Given ◽  
Giant Branch Stars

ABSTRACT We introduce a new distance determination method using carbon-rich asymptotic giant branch stars (CS) as standard candles and the Large and Small Magellanic Clouds (LMC and SMC) as the fundamental calibrators. We select the samples of CS from the ((J − Ks)0, J0) colour–magnitude diagrams, as, in this combination of filters, CS are bright and easy to identify. We fit the CS J-band luminosity functions using a Lorentzian distribution modified to allow the distribution to be asymmetric. We use the parameters of the best-fitting distribution to determine if the CS luminosity function of a given galaxy resembles that of the LMC or SMC. Based on this resemblance, we use either the LMC or SMC as the calibrator and estimate the distance to the given galaxy using the median J magnitude ($\overline{J}$) of the CS samples. We apply this new method to the two Local Group galaxies NGC 6822 and IC 1613. We find that NGC 6822 has an ‘LMC-like’ CS luminosity function, while IC 1613 is more ‘SMC-like’. Using the values for the median absolute J magnitude for the LMC and SMC found in Paper I we find a distance modulus of μ0 = 23.54 ± 0.03 (stat) for NGC 6822 and μ0 = 24.34 ± 0.05 (stat) for IC 1613.

scholarly journals THE BRIGHT END OF THEz∼ 9 ANDz∼ 10 UV LUMINOSITY FUNCTIONS USING ALL FIVE CANDELS FIELDS

2016 ◽  
Vol 830 (2) ◽  
pp. 67 ◽  
Author(s):  
R. J. Bouwens ◽  
P. A. Oesch ◽  
I. Labbé ◽  
G. D. Illingworth ◽  
G. G. Fazio ◽  
...  
Keyword(s):  
Luminosity Functions

scholarly journals Bias in the estimation of global luminosity functions

2004 ◽  
Vol 351 (2) ◽  
pp. 541-551 ◽  
Author(s):  
O. Ilbert ◽  
L. Tresse ◽  
S. Arnouts ◽  
E. Zucca ◽  
S. Bardelli ◽  
...  
Keyword(s):  
Luminosity Functions

scholarly journals LUMINOSITY FUNCTIONS OFSPITZER-IDENTIFIED PROTOSTARS IN NINE NEARBY MOLECULAR CLOUDS

2012 ◽  
Vol 144 (2) ◽  
pp. 31 ◽  
Author(s):  
E. Kryukova ◽  
S. T. Megeath ◽  
R. A. Gutermuth ◽  
J. Pipher ◽  
T. S. Allen ◽  
...  
Keyword(s):  
Molecular Clouds ◽  
Luminosity Functions

scholarly journals A comparative study of satellite galaxies in Milky Way-like galaxies from HSC, DECaLS, and SDSS

2020 ◽  
Vol 500 (3) ◽  
pp. 3776-3801
Author(s):  
Wenting Wang ◽  
Masahiro Takada ◽  
Xiangchong Li ◽  
Scott G Carlsten ◽  
Ting-Wen Lan ◽  
...  
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Statistical Study ◽  
Satellite System ◽  
Large Scatter ◽  
Local Universe ◽  
Good Representative ◽  
Luminosity Functions ◽  
Satellite Galaxies ◽  
Good Agreement

ABSTRACT We conduct a comprehensive and statistical study of the luminosity functions (LFs) for satellite galaxies, by counting photometric galaxies from HSC, DECaLS, and SDSS around isolated central galaxies (ICGs) and paired galaxies from the SDSS/DR7 spectroscopic sample. Results of different surveys show very good agreement. The satellite LFs can be measured down to MV ∼ −10, and for central primary galaxies as small as 8.5 < log10M*/M⊙ < 9.2 and 9.2 < log10M*/M⊙ < 9.9, which implies there are on average 3–8 satellites with MV < −10 around LMC-mass ICGs. The bright end cutoff of satellite LFs and the satellite abundance are both sensitive to the magnitude gap between the primary and its companions, indicating galaxy systems with larger magnitude gaps are on average hosted by less massive dark matter haloes. By selecting primaries with stellar mass similar to our Milky Way (MW), we discovered that (i) the averaged satellite LFs of ICGs with different magnitude gaps to their companions and of galaxy pairs with different colour or colour combinations all show steeper slopes than the MW satellite LF; (ii) there are on average more satellites with −15 < MV < −10 than those in our MW; (iii) there are on average 1.5 to 2.5 satellites with MV < −16 around ICGs, consistent with our MW; (iv) even after accounting for the large scatter predicted by numerical simulations, the MW satellite LF is uncommon at MV > −12. Hence, the MW and its satellite system are statistically atypical of our sample of MW-mass systems. In consequence, our MW is not a good representative of other MW-mass galaxies. Strong cosmological implications based on only MW satellites await additional discoveries of fainter satellites in extra-galactic systems. Interestingly, the MW satellite LF is typical among other MW-mass systems within 40 Mpc in the local Universe, perhaps implying the Local Volume is an underdense region.

scholarly journals The number counts, luminosity functions, and evolution
of microwave-selected (WMAP) blazars and radio galaxies

2009 ◽  
Vol 508 (1) ◽  
pp. 107-115 ◽  
Author(s):  
P. Giommi ◽  
S. Colafrancesco ◽  
P. Padovani ◽  
D. Gasparrini ◽  
E. Cavazzuti ◽  
...  
Keyword(s):  
Radio Galaxies ◽  
Luminosity Functions ◽  
Number Counts

scholarly journals Models of high redshift luminosity functions and galactic outflows: The dependence on halo mass function

New Astronomy ◽  
2009 ◽  
Vol 14 (7) ◽  
pp. 591-603 ◽  
Author(s):  
Saumyadip Samui ◽  
Kandaswamy Subramanian ◽  
Raghunathan Srianand
Keyword(s):  
High Redshift ◽  
Mass Function ◽  
Luminosity Functions ◽  
Galactic Outflows
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