2025ApJS..279...12Z

Query : 2025ApJS..279...12Z

2025ApJS..279...12Z - Astrophys. J., Suppl. Ser., 279, 12 (2025/July-0)

PANCAKE: A Python-based Numerical Color-Magnitude Diagram Analysis Package.

ZHENG Y., YANG Y., ZHANG Y.-K., ZHENG Z., WANG J., STAVELEY-SMITH L., TSAI C.-W., LI D., LIU C., HU J., CHEN H., QUAN D., ZHENG Y. and LI H.

Abstract (from CDS):

Stellar populations serve as a fossil record of galaxy formation and evolution, providing crucial information about the history of star formation and galaxy evolution. The color-magnitude diagram (CMD) stands out as the most accurate tool currently available for inferring the star formation histories (SFHs) of nearby galaxies with stellar-resolved multiband data. The launch of new space telescopes, including JWST, EUCLID, and the upcoming CSST and Roman, will significantly increase the number of stellar-resolved galaxies over the next decade. A user-friendly and customizable CMD-fitting package would be valuable for galaxy evolution studies with these data. We have developed the open-source Python-bAsed Numerical Color-magnitude diagram Analysis pacKagE (PANCAKE), which is fast and accurate in determining SFHs and stellar population parameters for nearby galaxies. We have validated our method via a series of comprehensive tests. First, PANCAKE performs well on mock data, while the random and systematic uncertainties are quantified. Second, PANCAKE performs well on observational data containing a star cluster and 38 dwarf galaxies (50 fields). Third, the star formation rates (SFRs) from PANCAKE are consistent with the SFRs determined with far-ultraviolet photometry. To ensure compatibility and accuracy, we have included isochrone libraries generated using PARSEC for most of the optical and near-infrared filters used by space telescopes such as the Hubble Space Telescope, JWST, and the upcoming CSST.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Stellar populations - Galaxy stellar content - Hertzsprung Russell diagram

Simbad objects: 30

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Number of rows : 30
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
3 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
4 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
5 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
6 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
7 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
8 NAME Andromeda XI G 00 46 20.0 +33 48 05     17.5     ~ 130 0
9 NAME Pisces I G 01 03 55.0 +21 53 06   16.18 14.3     ~ 404 0
10 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
11 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 215 0
12 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 402 0
13 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
14 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
15 NGC 1755 Cl* 04 55 16.390 -68 12 23.12   10.00 9.85     ~ 80 0
16 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
17 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 434 0
18 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
19 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
20 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
21 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
22 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
23 NAME Leo IV LSB 11 32 57.0 -00 32 00     15.1     ~ 419 1
24 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
25 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 323 1
26 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
27 MCG-02-53-003 G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 470 1
28 NAME Andromeda VII GiG 23 26 31.0 +50 40 33   13.6 11.8     ~ 222 1
29 NAME Peg dSph GiG 23 51 46.3 +24 34 57   14.5 13.2     ~ 250 2
30 NAME Local Group GrG ~ ~           ~ 9325 0

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