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13 results on '"Berlind, P."'

1. Zodiacal Exoplanets in Time (ZEIT). VII. A Temperate Candidate Super-Earth in the Hyades Cluster

Author

Berlind, P., Mann, A.W., Bieryla, A., Everett, M.E., Rizzuto, A., Horch, E.P., Howell, S.B., Scott, N.J., Vanderburg, A., Latham, D.W., Esquerdo, G.A., Douglas, S.T., Kraus, A.L., Curtis, J.L., Quinn, S.N., Calkins, M.L., Stefanik, R.P., and Mayo, A.W.

Abstract

Transiting exoplanets in young open clusters present opportunities to study how exoplanets evolve over their lifetimes. Recently, significant progress detecting transiting planets in young open clusters has been made with the K2 mission, but so far all of these transiting cluster planets orbit close to their host stars, so planet evolution can only be studied in a high-irradiation regime. Here, we report the discovery of a long-period planet candidate, called HD 283869 b, orbiting a member of the Hyades cluster. Using data from the K2 mission, we detected a single transit of a super-Earth-sized (1.96 0.12 R ⊕) planet candidate orbiting the K-dwarf HD 283869 with a period longer than 72 days. As we only detected a single-transit event, we cannot validate HD 283869 b with high confidence, but our analysis of the K2 images, archival data, and follow-up observations suggests that the source of the event is indeed a transiting planet. We estimated the candidate's orbital parameters and find that if real, it has a period P ≈ 100 days and receives approximately Earth-like incident flux, giving the candidate a 71% chance of falling within the circumstellar habitable zone. If confirmed, HD 283869 b would have the longest orbital period, lowest incident flux, and brightest host star of any known transiting planet in an open cluster, making it uniquely important to future studies of how stellar irradiation affects planetary evolution.

Published
2018
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2. Zodiacal Exoplanets in Time (ZEIT). VI. A Three-planet System in the Hyades Cluster Including an Earth-sized Planet

Author

Rizzuto, A.C., Latham, D.W., MacE, G.N., Morris, N.R., Quinn, S.N., Berlind, P., Sokal, K.R., Mann, A.W., Vanderburg, A., Stefanik, R.P., Kraus, A.L., Bieryla, A., Calkins, M.L., and Esquerdo, G.A.

Abstract

Planets in young clusters are powerful probes of the evolution of planetary systems. Here we report the discovery of three planets transiting EPIC 247589423, a late-K dwarf in the Hyades (≃800 Myr) cluster, and robust detection limits for additional planets in the system. The planets were identified from their K2 light curves as part of our survey of young clusters and star-forming regions. The smallest planet has a radius comparable to Earth (), making it one of the few Earth-sized planets with a known, young age. The two larger planets are likely a mini-Neptune and a super-Earth, with radii of 291+0.11-0.10and 1.45+0.11-0.08 , respectively. The predicted radial velocity signals from these planets are between 0.4 and 2 m s-1, achievable with modern precision RV spectrographs. Because the target star is bright (V = 11.2) and has relatively low-amplitude stellar variability for a young star (2-6 mmag), EPIC 247589423 hosts the best known planets in a young open cluster for precise radial velocity follow-up, enabling a robust test of earlier claims that young planets are less dense than their older counterparts.

Published
2018
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4. Comparative analysis of SN 2012dn optical spectra: days −14 to +114

Author

Parrent, JT, Howell, DA, Fesen, RA, Parker, S, Bianco, FB, Dilday, B, Sand, D, Valenti, S, Vinkó, J, Berlind, P, Challis, P, Milisavljevic, D, Sanders, N, Marion, GH, Wheeler, JC, Brown, P, Calkins, ML, Friesen, B, Kirshner, R, Pritchard, T, Quimby, R, and Roming, P

Subjects
individual: SN 2012dn [supernovae], Astronomy & Astrophysics, general [supernovae], Astronomical and Space Sciences
Abstract

SN 2012dn is a super-Chandrasekhar mass candidate in a purportedly normal spiral (SAcd) galaxy, and poses a challenge for theories of type Ia supernova diversity.Herewe utilize the fast and highly parametrized spectrum synthesis tool, SYNAPPS, to estimate relative expansion velocities of species inferred from optical spectra obtained with six facilities. As with previous studies of normal SN Ia, we find that both unburned carbon and intermediate-mass elements are spatially coincident within the ejecta near and below 14 000 km s-1. Although the upper limit on SN 2012dn's peak luminosity is comparable to some of the most luminous normal SN Ia, we find a progenitor mass exceeding ~1.6 M⊙ is not strongly favoured by leading merger models since these models do not accurately predict spectroscopic observations of SN 2012dn and more normal events. In addition, a comparison of light curves and host-galaxy masses for a sample of literature and Palomar Transient Factory SN Ia reveals a diverse distribution of SN Ia subtypes where carbon-rich material remains unburned in some instances. Such events include SN 1991T, 1997br, and 1999aa where trace signatures of C III at optical wavelengths are presumably detected.

Published
2016

5. Extending the Search for Counterrotating Gas and Stars in Galaxies: A Study of Late-Type Dwarfs

Author

Guie, J. M., Kannappan, S. J., Balog, Z., and Berlind, P.

Subjects
Physics::Fluid Dynamics, Astrophysics (astro-ph), Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

In a previous study on gas-stellar counterrotation for a large sample of E/S0 and spiral galaxies (Kannappan & Fabricant 2001), two dwarf irregular galaxies were included, of which one was tentatively identified as a counterrotator. Here we extend the search for counterrotation to include 10 more irregular/spiral dwarf galaxies. We find that all systems with well defined gas and stellar rotation show kinematics consistent with co-rotation. However, we see evidence of decoupled gas and stellar kinematics in >~ 50% of the sample, possibly reflecting minor interactions too small to create large-scale gas-stellar counterrotation., 2 pages including 2 figures; to appear in The Ninth Texas Mexico Conference on Astrophysics, RevMexAA, Serie de Conferencias, ed. Silvia Torres-Peimbert and G. MacAlpine

Published
2005
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6. The Optical Afterglow of GRB 011211

Author

Holland, Stephen T., Soszynski, I., Gladders, Michael D., Barrientos, L. F., Berlind, P., Bersier, David, Garnavich, Peter M., Jha, Saurabh, and Stanek, K. Z.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics
Abstract

We present early-time optical photometry and spectroscopy of the optical afterglow of the gamma-ray burst GRB 011211. The spectrum of the optical afterglow contains several narrow metal lines which are consistent with the burst occurring at a redshift of 2.140 +/- 0.001. The optical afterglow decays as a power law with a slope of alpha = 0.83 +/- 0.04 for the first approximately two days after the burst at which time there is evidence for a break. The slope after the break is at least 1.4. There is evidence for rapid variations in the R-band light approximately 0.5 days after the burst. These variations suggest that there are density fluctuations near the gamma-ray burst on spatial scales of approximately 40--125 AU. The magnitude of the break in the light curve, the spectral slope, and the rate of decay in the optical, suggest that the burst expanded into an ambient medium that is homogeneous on large scales. We estimate that the local particle density is between approximately 0.1 and 10 cm^{-3} and that the total gamma-ray energy in the burst was 1.2--1.9 x 10^{50} erg. This energy is smaller than, but consistent with, the ``standard'' value of (5 +/- 2) x 10^{50} erg. Comparing the observed color of the optical afterglow with predictions of the standard beaming model suggests that the rest-frame V-band extinction in the host galaxy is less than approximately 0.03 mag., Comment: 17 pages, 4 figures, AASTeX 5.02, to appear in AJ Referee's report incorporated, minor changes in the text

Published
2002
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7. Supernova 2000ce in UGC 4195

Author

Jha, S., Challis, P., Kirshner, R., Berlind, P., Groot, P.J., and High Energy Astrophys. & Astropart. Phys (API, FNWI)

Published
2000

8. STEPS TOWARD DETERMINATION OF THE SIZE AND STRUCTURE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI .8. AN INTENSIVE HST, IUE, AND GROUND-BASED STUDY OF NGC-5548

Author

KORISTA, K, ALLOIN, D, BARR, P, CLAVEL, J, COHEN, R, CRENSHAW, D, EVANS, I, HORNE, K, KORATKAR, A, KRISS, G, KROLIK, J, MALKAN, M, MORRIS, S, NETZER, H, OBRIEN, P, PETERSON, B, REICHERT, G, RODRIGUEZPASCUAL, P, WAMSTEKER, W, ANDERSON, K, AXON, D, BENITEZ, E, BERLIND, P, BERTRAM, R, BLACKWELL, J, BOCHKAREV, N, BOISSON, C, CARINI, M, CARRILLO, R, CARONE, T, CHENG, F, CHRISTENSEN, J, CHUVAEV, K, DIERICH, M, DOKTER, J, DOROSHENKO, V, DULTZINHACYAN, D, ENGLAND, M, ESPEY, B, FILIPPENKO, A, GASKELL, C, GOAD, M, HO, L, HUCHRA, J, JIANG, X, KASPI, S, KOLLATSCHNY, W, LAOR, A, LUMINET, J, MACALPINE, G, MACKENTY, J, MALKOV, Y, MAOZ, D, MARTIN, P, MATHESON, T, MCCOLLUM, B, MERKULOVA, N, METIK, L, MIGNOLI, M, MILLER, H, PASTORIZA, M, PELAT, D, PENFOLD, J, PEREZ, M, PEROLA, G, PERSAUD, J, PETERS, J, PITTS, R, POGGE, R, PRONIK, I, PRONIK, V, PTAK, R, RAWLEY, L, RECONDOGONZALEZ, M, RODRIGUEZESPINOSA, J, ROMANISHIN, W, SADUN, A, SALAMANCA, I, SANTOSLLEO, M, SEKIGUCHI, K, SERGEEV, S, SHAPOVALOVA, A, SHIELDS, J, SHRADER, C, SHULL, J, SILBERMANN, N, SITKO, M, SKILLMAN, D, SMITH, H, SMITH, S, SNIJDERS, M, SPARKE, L, STIRPE, G, STONER, R, SUN, W, THIELE, U, TOKARZ, S, TSVETANOV, Z, TURNSHEK, D, VEILLEUX, S, WAGNER, R, WAGNER, S, WANDERS, I, WANG, T, WELSH, W, WEYMANN, R, WHITE, R, WILKES, B, WILLS, B, WINGE, C, WU, H, and ZOU, Z

Published
1995

9. VizieR Online Data Catalog: CfA4: light curves for 94 type Ia SNe (Hicken+, 2012)

Author

Hicken, M., Challis, P., Kirshner, R. P., Rest, A., Cramer, C. E., Wood-Vasey, W. M., Bakos, G., Berlind, P., Brown, W. R., Caldwell, N., Calkins, M., Currie, T., Kleer, K., Esquerdo, G., Everett, M., Falco, E., Fernandez, J., Andrew Friedman, Groner, T., Hartman, J., Holman, M. J., Hutchins, R., Keys, S., Kipping, D., Latham, D., Marion, G. H., Narayan, G., Pahre, M., Pal, A., Peters, W., Perumpilly, G., Ripman, B., Sipocz, B., Szentgyorgyi, A., Tang, S., Torres, M. A. P., Vaz, A., Wolk, S., and Zezas, A.

10. BV RI light curves for 22 type Ia supernovae

Author

Riess, A. G., Kirshner, R. P., Brian Schmidt, Jha, S., Challis, P., Garnavich, P. M., Esin, A. A., Carpenter, C., Grashius, R., Schild, R. E., Berlind, P. L., Huchra, J. P., Prosser, C. F., Falco, E. E., Benson, P. J., Briceño, C., Brown, W. R., Caldwell, N., Antonio, I. P., Filippenko, A. V., Goodman, A. A., Grogin, N. A., Groner, T., Hughes, J. P., Green, P. J., Jansen, R. A., Kleyna, J. T., Luu, J. X., Macri, L. M., Mcleod, B. A., Mcleod, K. K., Mcnamara, B. R., Mclean, B., Milone, A. A. E., Mohr, J. J., Moraru, D., Peng, C., Peters, J., Prestwich, A. H., Stanek, K. Z., Szentgyorgyi, A., and Zhao, P.

11. Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VIII. An intensive HST, IUE, and ground-based study of NGC 5548

Author

Korista, K. T., Alloin, D., Barr, P., Clavel, J., Cohen, R. D., Crenshaw, D. M., Evans, I. N., Horne, K., Koratkar, A. P., Kriss, G. A., Krolik, J. H., Malkan, M. A., Morris, S. L., Netzer, H., O Brien, P. T., Peterson, B. M., Reichert, G. A., Rodríguez-Pascual, P. M., Wamsteker, W., Anderson, K. S. J., Axon, D. J., Benitez, E., Berlind, P., Bertram, R., Blackwell Jr, J. H., Bochkarev, N. G., Boisson, C., Carini, M., Carrillo, R., Carone, T. E., Cheng, F. -Z, Christensen, J. A., Chuvaev, K. K., Dietrich, M., Dokter, J. J., Doroshenko, V., Dultzin-Hacyan, D., England, M. N., Brian Espey, Filippenko, A. V., Gaskell, C. M., Goad, M. R., Ho, L. C., Huchra, J. P., Jiang, X. J., Kaspi, S., Kollatschny, W., Laor, A., Luminet, J. -P, Macalpine, G. M., Mackenty, J. W., Malkov, Yu F., Maoz, D., Martin, P. G., Matheson, T., Mccollum, B., Merkulova, N., Metik, L., Mignoli, M., Miller, H. R., Pastoriza, M. G., Pelat, D., Penfold, J., Perez, M., Perola, G. C., Persaud, J. L., Peters, J., Pitts, R., Pogge, R. W., Pronik, I., Pronik, V. I., Ptak, R. L., Rawley, L., Recondo-González, M. C., Rodríguez-Espinosa, J. M., Romanishin, W., Sadun, A. C., Salamanca, I., Santos-Lleó, M., Sekiguchi, K., Sergeev, S. G., Shapovalova, A. I., Shields, J. C., Shrader, C., Shull, J. M., Silbermann, N. A., Sitko, M. L., Skillman, D. R., Smith, H. A., Smith, S. M., Snijders, M. A. J., Sparke, L. S., Stirpe, G. M., Stoner, R. E., Sun, W. -H, Thiele, U., Tokarz, S., Tsvetanov, Z. I., Turnshek, D. A., Veilleux, S., Wagner, R. M., Wagner, S. J., Wanders, I., Wang, T., Welsh, W. F., Weymann, R. J., White, R. J., Wilkes, B. J., Wills, B. J., Winge, C., Wu, H., and Zou, Z. L.

12. KELT-6b: A Transiting Mildly-Inflated Saturn with a Metal-Poor Host

Author

Collins, Karen A., Siverd, R., Thomas Beatty, Eastman, J., Gaudi, B. S., Pepper, J., Stassun, K., Latham, D. W., Bieryla, A., Manner, M., Jensen, E. L., Kielkopf, J. F., Gregorio, J., Fulton, B. J., Buchhave, L. A., Penev, K., Crepp, J. R., Cargile, P., Mack, C. E., Oberst, T. E., Avril, R. L., Mellon, S., Mcleod, K. K., Dhital, S., Stefanik, R. P., Calkins, M. L., Esquerdo, G., Berlind, P. L., Street, R., Zambelli, R., Mao, Q., Richert, A. J., Gould, A., Depoy, D. L., Marshall, J. L., Pogge, R. W., Trueblood, M., and Trueblood, P.

13. KELT-3b: A Hot Jupiter Around a Bright V=9.8 Late-F Star

Author

Pepper, Joshua, Siverd, R., Thomas Beatty, Berlind, P. L., Bieryla, A., Buchhave, L., Calkins, M. L., Cargile, P., Collins, K., Crepp, J. R., Depoy, D. L., Eastman, J., Esquerdo, G., Fulton, B., Gaudi, B. S., Gould, A., Jensen, E. L., Kielkopf, J. F., Latham, D. W., Mao, Q., Manner, M., Marshall, J. L., Penev, K., Pogge, R. W., Richert, A., Stassun, K., Stefanik, R. P., Street, R., Trueblood, M., and Trueblood, P.

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