Exploring the impact of galaxy interactions over seven billion years with CAS

Sarah H. Miller; S. Jogee; C. Conselice; K. Penner; E. Bell; X. Zheng; C. Papovich; R. Skelton; R. Somerville; H. -W. Rix; F. Barazza; M. Barden; A. Borch; S. Beckwith; J. Caldwell; B. Haeussler; C. Heymans; K. Jahnke; D. McIntosh; K. Meisenheimer; C. Peng; A. Robaina; S. Sanchez; L. Wisotzki; C. Wolf

Exploring the impact of galaxy interactions over seven billion years with CAS

Sarah H. Miller, S. Jogee, C. Conselice, K. Penner, E. Bell, X. Zheng, C. Papovich, R. Skelton, R. Somerville, H. -W. Rix, F. Barazza, M. Barden, A. Borch, S. Beckwith, J. Caldwell, B. Haeussler, C. Heymans, K. Jahnke, D. McIntosh, K. MeisenheimerC. Peng, A. Robaina, S. Sanchez, L. Wisotzki, C. Wolf

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract / Description of output

We explore galaxy assembly over the last seven billion years by characterizing "normal" galaxies along the Hubble sequence, against strongly disturbed merging/interacting galaxies with the widely used CAS system of concentration (C), asymmetry (A), and 'clumpiness' (S) parameters, as well as visual classification. We analyze Hubble Space Telescope (HST) ACS images of similar to 4000 intermediate and high mass (M/M-circle dot > 10(9)) galaxies from the GEMS survey, one of the largest HST surveys conducted to date in two filters. We explore the effectiveness of the CAS criteria [A > S and A > 0.35] in separating normal and strongly disturbed galaxies at different, redshifts, and quantify the recovery and contamination rate. We also compare the average star formation rate and the cosmic star formation rate density as a function of redshift between normal and interacting systems identified by CAS.

Original language	English
Title of host publication	NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007
Editors	A Frebel, JR Maund, J Shen, MH Siegel
Place of Publication	SAN FRANCISCO
Publisher	ASTRONOMICAL SOC PACIFIC
Pages	235-238
Number of pages	4
ISBN (Print)	978-1-58381-656-1
Publication status	Published - 2008
Event	Frank N Bash Symposium on New Horizons Astronomy - Austin Duration: 14 Oct 2007 → 16 Oct 2007

Conference

Conference	Frank N Bash Symposium on New Horizons Astronomy
City	Austin
Period	14/10/07 → 16/10/07

Keywords / Materials (for Non-textual outputs)

HIGH-REDSHIFT GALAXIES
NEARBY

Cite this

Miller, S. H., Jogee, S., Conselice, C., Penner, K., Bell, E., Zheng, X., Papovich, C., Skelton, R., Somerville, R., Rix, H. .-W., Barazza, F., Barden, M., Borch, A., Beckwith, S., Caldwell, J., Haeussler, B., Heymans, C., Jahnke, K., McIntosh, D., ... Wolf, C. (2008). Exploring the impact of galaxy interactions over seven billion years with CAS. In A. Frebel, JR. Maund, J. Shen, & MH. Siegel (Eds.), NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007 (pp. 235-238). ASTRONOMICAL SOC PACIFIC.

@inproceedings{bdaf14ab433f4b5683d16d95b3f220f4,

title = "Exploring the impact of galaxy interactions over seven billion years with CAS",

abstract = "We explore galaxy assembly over the last seven billion years by characterizing {"}normal{"} galaxies along the Hubble sequence, against strongly disturbed merging/interacting galaxies with the widely used CAS system of concentration (C), asymmetry (A), and 'clumpiness' (S) parameters, as well as visual classification. We analyze Hubble Space Telescope (HST) ACS images of similar to 4000 intermediate and high mass (M/M-circle dot > 10(9)) galaxies from the GEMS survey, one of the largest HST surveys conducted to date in two filters. We explore the effectiveness of the CAS criteria [A > S and A > 0.35] in separating normal and strongly disturbed galaxies at different, redshifts, and quantify the recovery and contamination rate. We also compare the average star formation rate and the cosmic star formation rate density as a function of redshift between normal and interacting systems identified by CAS.",

keywords = "HIGH-REDSHIFT GALAXIES, NEARBY",

author = "Miller, {Sarah H.} and S. Jogee and C. Conselice and K. Penner and E. Bell and X. Zheng and C. Papovich and R. Skelton and R. Somerville and Rix, {H. -W.} and F. Barazza and M. Barden and A. Borch and S. Beckwith and J. Caldwell and B. Haeussler and C. Heymans and K. Jahnke and D. McIntosh and K. Meisenheimer and C. Peng and A. Robaina and S. Sanchez and L. Wisotzki and C. Wolf",

year = "2008",

language = "English",

isbn = "978-1-58381-656-1",

pages = "235--238",

editor = "A Frebel and JR Maund and J Shen and MH Siegel",

booktitle = "NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007",

publisher = "ASTRONOMICAL SOC PACIFIC",

note = "Frank N Bash Symposium on New Horizons Astronomy ; Conference date: 14-10-2007 Through 16-10-2007",

}

Miller, SH, Jogee, S, Conselice, C, Penner, K, Bell, E, Zheng, X, Papovich, C, Skelton, R, Somerville, R, Rix, H-W, Barazza, F, Barden, M, Borch, A, Beckwith, S, Caldwell, J, Haeussler, B, Heymans, C, Jahnke, K, McIntosh, D, Meisenheimer, K, Peng, C, Robaina, A, Sanchez, S, Wisotzki, L & Wolf, C 2008, Exploring the impact of galaxy interactions over seven billion years with CAS. in A Frebel, JR Maund, J Shen & MH Siegel (eds), NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007. ASTRONOMICAL SOC PACIFIC, SAN FRANCISCO, pp. 235-238, Frank N Bash Symposium on New Horizons Astronomy, Austin, 14/10/07.

Exploring the impact of galaxy interactions over seven billion years with CAS. / Miller, Sarah H.; Jogee, S.; Conselice, C. et al.
NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007. ed. / A Frebel; JR Maund; J Shen; MH Siegel. SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC, 2008. p. 235-238.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Exploring the impact of galaxy interactions over seven billion years with CAS

AU - Miller, Sarah H.

AU - Jogee, S.

AU - Conselice, C.

AU - Penner, K.

AU - Bell, E.

AU - Zheng, X.

AU - Papovich, C.

AU - Skelton, R.

AU - Somerville, R.

AU - Rix, H. -W.

AU - Barazza, F.

AU - Barden, M.

AU - Borch, A.

AU - Beckwith, S.

AU - Caldwell, J.

AU - Haeussler, B.

AU - Heymans, C.

AU - Jahnke, K.

AU - McIntosh, D.

AU - Meisenheimer, K.

AU - Peng, C.

AU - Robaina, A.

AU - Sanchez, S.

AU - Wisotzki, L.

AU - Wolf, C.

PY - 2008

Y1 - 2008

N2 - We explore galaxy assembly over the last seven billion years by characterizing "normal" galaxies along the Hubble sequence, against strongly disturbed merging/interacting galaxies with the widely used CAS system of concentration (C), asymmetry (A), and 'clumpiness' (S) parameters, as well as visual classification. We analyze Hubble Space Telescope (HST) ACS images of similar to 4000 intermediate and high mass (M/M-circle dot > 10(9)) galaxies from the GEMS survey, one of the largest HST surveys conducted to date in two filters. We explore the effectiveness of the CAS criteria [A > S and A > 0.35] in separating normal and strongly disturbed galaxies at different, redshifts, and quantify the recovery and contamination rate. We also compare the average star formation rate and the cosmic star formation rate density as a function of redshift between normal and interacting systems identified by CAS.

AB - We explore galaxy assembly over the last seven billion years by characterizing "normal" galaxies along the Hubble sequence, against strongly disturbed merging/interacting galaxies with the widely used CAS system of concentration (C), asymmetry (A), and 'clumpiness' (S) parameters, as well as visual classification. We analyze Hubble Space Telescope (HST) ACS images of similar to 4000 intermediate and high mass (M/M-circle dot > 10(9)) galaxies from the GEMS survey, one of the largest HST surveys conducted to date in two filters. We explore the effectiveness of the CAS criteria [A > S and A > 0.35] in separating normal and strongly disturbed galaxies at different, redshifts, and quantify the recovery and contamination rate. We also compare the average star formation rate and the cosmic star formation rate density as a function of redshift between normal and interacting systems identified by CAS.

KW - HIGH-REDSHIFT GALAXIES

KW - NEARBY

M3 - Conference contribution

SN - 978-1-58381-656-1

SP - 235

EP - 238

BT - NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2007

A2 - Frebel, A

A2 - Maund, JR

A2 - Shen, J

A2 - Siegel, MH

PB - ASTRONOMICAL SOC PACIFIC

CY - SAN FRANCISCO

T2 - Frank N Bash Symposium on New Horizons Astronomy

Y2 - 14 October 2007 through 16 October 2007

ER -

Exploring the impact of galaxy interactions over seven billion years with CAS

Abstract / Description of output

Conference

Keywords / Materials (for Non-textual outputs)

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